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href="../../futures/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../futures/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">TryJoin4</a></h2><div class="sidebar-elems"><section><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Debug</a></li><li><a href="#impl-Future-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Future</a></li><li><a href="#impl-Unpin-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Unpin</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Send</a></li><li><a href="#impl-Sync-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Sync</a></li><li><a href="#impl-UnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">From&lt;T&gt;</a></li><li><a href="#impl-FutureExt-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E">FutureExt</a></li><li><a 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id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../index.html">futures</a>::<wbr><a href="index.html">future</a>::<wbr><a class="struct" href="#">TryJoin4</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct TryJoin4&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,</span>{ /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Future for the <a href="fn.try_join4.html" title="try_join4"><code>try_join4</code></a> function.</p>
</div></details><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a><a href="#impl-Debug-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Future-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a><a href="#impl-Future-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Error = &lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Error = &lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Error = &lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Output" class="anchor"></a><h4 class="code-header">type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;(&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>, &lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>, &lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>, &lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>), &lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>The type of value produced on completion.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a><a href="#method.poll" class="anchor"></a><h4 class="code-header">fn <a href="trait.Future.html#tymethod.poll" class="fnname">poll</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;&lt;<a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;</h4></section></summary><div class='docblock'>Attempt to resolve the future to a final value, registering
the current task for wakeup if the value is not yet available. <a href="trait.Future.html#tymethod.poll">Read more</a></div></details></div></details><section id="impl-Unpin-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_join.rs.html#92-104">source</a><a href="#impl-Unpin-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;'__pin, Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;__Origin&lt;'__pin, Fut1, Fut2, Fut3, Fut4&gt;: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</span></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</span></h3></section><section id="impl-Send-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a href="#impl-Send-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</span></h3></section><section id="impl-Sync-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a href="#impl-Sync-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</span></h3></section><section id="impl-UnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut1, Fut2, Fut3, Fut4&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.TryJoin4.html" title="struct futures::future::TryJoin4">TryJoin4</a>&lt;Fut1, Fut2, Fut3, Fut4&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut1: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut2: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut3: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut4: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut1 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut2 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut3 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut4 as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#200">source</a><a href="#impl-Any-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><a href="#impl-Borrow%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><a href="#impl-BorrowMut%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#733">source</a><a href="#impl-From%3CT%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#736">source</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-FutureExt-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#119">source</a><a href="#impl-FutureExt-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="trait.FutureExt.html" title="trait futures::future::FutureExt">FutureExt</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#146-149">source</a><a href="#method.map" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.map" class="fnname">map</a>&lt;U, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Map&lt;Fut, F&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Map&lt;Fut, F&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>) -&gt; U,</span></h4></section></summary><div class='docblock'>Map this future’s output to a different type, returning a new future of
the resulting type. <a href="trait.FutureExt.html#method.map">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map_into" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#159-162">source</a><a href="#method.map_into" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.map_into" class="fnname">map_into</a>&lt;U&gt;(self) -&gt; <a class="struct" href="struct.MapInto.html" title="struct futures::future::MapInto">MapInto</a>&lt;Self, U&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.MapInto.html" title="struct futures::future::MapInto">MapInto</a>&lt;Fut, T&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, T&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.MapInto.html" title="struct futures::future::MapInto">MapInto</a>&lt;Fut, T&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, IntoFn&lt;T&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, IntoFn&lt;T&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt;,</span></h4></section></summary><div class='docblock'>Map this future’s output to a different type, returning a new future of
the resulting type. <a href="trait.FutureExt.html#method.map_into">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.then" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#191-195">source</a><a href="#method.then" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.then" class="fnname">then</a>&lt;Fut, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.Then.html" title="struct futures::future::Then">Then</a>&lt;Self, Fut, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Then.html" title="struct futures::future::Then">Then</a>&lt;Fut1, Fut2, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut1, Fut2, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Then.html" title="struct futures::future::Then">Then</a>&lt;Fut1, Fut2, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Flatten&lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut1, F&gt;, Fut2&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Flatten&lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut1, F&gt;, Fut2&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>) -&gt; Fut,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></h4></section></summary><div class='docblock'>Chain on a computation for when a future finished, passing the result of
the future to the provided closure <code>f</code>. <a href="trait.FutureExt.html#method.then">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.left_future" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#222-225">source</a><a href="#method.left_future" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.left_future" class="fnname">left_future</a>&lt;B&gt;(self) -&gt; <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;Self, B&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;A, B&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;A, B&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;A, B&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = &lt;A as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;A as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;,</span></h4></section></summary><div class='docblock'>Wrap this future in an <code>Either</code> future, making it the left-hand variant
of that <code>Either</code>. <a href="trait.FutureExt.html#method.left_future">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.right_future" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#252-255">source</a><a href="#method.right_future" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.right_future" class="fnname">right_future</a>&lt;A&gt;(self) -&gt; <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;A, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;A, B&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;A, B&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="enum" href="enum.Either.html" title="enum futures::future::Either">Either</a>&lt;A, B&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = &lt;A as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;A as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;,</span></h4></section></summary><div class='docblock'>Wrap this future in an <code>Either</code> future, making it the right-hand variant
of that <code>Either</code>. <a href="trait.FutureExt.html#method.right_future">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into_stream" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#278-280">source</a><a href="#method.into_stream" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.into_stream" class="fnname">into_stream</a>(self) -&gt; <a class="struct" href="struct.IntoStream.html" title="struct futures::future::IntoStream">IntoStream</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Convert this future into a single element stream. <a href="trait.FutureExt.html#method.into_stream">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.flatten" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#307-310">source</a><a href="#method.flatten" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.flatten" class="fnname">flatten</a>(self) -&gt; <a class="struct" href="struct.Flatten.html" title="struct futures::future::Flatten">Flatten</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Flatten.html" title="struct futures::future::Flatten">Flatten</a>&lt;F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Flatten.html" title="struct futures::future::Flatten">Flatten</a>&lt;F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Flatten&lt;F, &lt;F as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Flatten&lt;F, &lt;F as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></h4></section></summary><div class='docblock'>Flatten the execution of this future when the output of this
future is itself another future. <a href="trait.FutureExt.html#method.flatten">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.flatten_stream" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#341-344">source</a><a href="#method.flatten_stream" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.flatten_stream" class="fnname">flatten_stream</a>(self) -&gt; <a class="struct" href="struct.FlattenStream.html" title="struct futures::future::FlattenStream">FlattenStream</a>&lt;Self&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>: <a class="trait" href="../stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a>,</span></h4></section></summary><div class='docblock'>Flatten the execution of this future when the successful result of this
future is a stream. <a href="trait.FutureExt.html#method.flatten_stream">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fuse" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#365-367">source</a><a href="#method.fuse" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.fuse" class="fnname">fuse</a>(self) -&gt; <a class="struct" href="struct.Fuse.html" title="struct futures::future::Fuse">Fuse</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Fuse.html" title="struct futures::future::Fuse">Fuse</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Fuse.html" title="struct futures::future::Fuse">Fuse</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Fut as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Fuse a future such that <code>poll</code> will never again be called once it has
completed. This method can be used to turn any <code>Future</code> into a
<code>FusedFuture</code>. <a href="trait.FutureExt.html#method.fuse">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.inspect" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#391-394">source</a><a href="#method.inspect" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.inspect" class="fnname">inspect</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Map&lt;Fut, InspectFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Map&lt;Fut, InspectFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&amp;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>),</span></h4></section></summary><div class='docblock'>Do something with the output of a future before passing it on. <a href="trait.FutureExt.html#method.inspect">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.catch_unwind" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#431-433">source</a><a href="#method.catch_unwind" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.catch_unwind" class="fnname">catch_unwind</a>(self) -&gt; <a class="struct" href="struct.CatchUnwind.html" title="struct futures::future::CatchUnwind">CatchUnwind</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.CatchUnwind.html" title="struct futures::future::CatchUnwind">CatchUnwind</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.CatchUnwind.html" title="struct futures::future::CatchUnwind">CatchUnwind</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;&lt;Fut as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'static, <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/alloc/struct.Global.html" title="struct alloc::alloc::Global">Global</a>&gt;&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</span></h4></section></summary><div class='docblock'>Catches unwinding panics while polling the future. <a href="trait.FutureExt.html#method.catch_unwind">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.shared" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#486-489">source</a><a href="#method.shared" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.shared" class="fnname">shared</a>(self) -&gt; <a class="struct" href="struct.Shared.html" title="struct futures::future::Shared">Shared</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Shared.html" title="struct futures::future::Shared">Shared</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Shared.html" title="struct futures::future::Shared">Shared</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Fut as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;Fut as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</span></h4></section></summary><div class='docblock'>Create a cloneable handle to this future where all handles will resolve
to the same result. <a href="trait.FutureExt.html#method.shared">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.remote_handle" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#505-507">source</a><a href="#method.remote_handle" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.remote_handle" class="fnname">remote_handle</a>(self) -&gt; (<a class="struct" href="struct.Remote.html" title="struct futures::future::Remote">Remote</a>&lt;Self&gt;, <a class="struct" href="struct.RemoteHandle.html" title="struct futures::future::RemoteHandle">RemoteHandle</a>&lt;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;)</h4></section></summary><div class='docblock'>Turn this future into a future that yields <code>()</code> on completion and sends
its output to another future on a separate task. <a href="trait.FutureExt.html#method.remote_handle">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.boxed" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#518-520">source</a><a href="#method.boxed" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.boxed" class="fnname">boxed</a>&lt;'a&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;self<br>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a, <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/alloc/struct.Global.html" title="struct alloc::alloc::Global">Global</a>&gt;&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;P&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;P&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;P&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.DerefMut.html" title="trait core::ops::deref::DerefMut">DerefMut</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;P as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a>: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;&lt;P as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a> as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: 'a + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</span></h4></section></summary><div class='docblock'>Wrap the future in a Box, pinning it. <a href="trait.FutureExt.html#method.boxed">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.boxed_local" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#532-534">source</a><a href="#method.boxed_local" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.boxed_local" class="fnname">boxed_local</a>&lt;'a&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;self<br>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt; + 'a, <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/alloc/struct.Global.html" title="struct alloc::alloc::Global">Global</a>&gt;&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;P&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;P&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;P&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.DerefMut.html" title="trait core::ops::deref::DerefMut">DerefMut</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;P as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a>: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;&lt;P as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a> as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: 'a,</span></h4></section></summary><div class='docblock'>Wrap the future in a Box, pinning it. <a href="trait.FutureExt.html#method.boxed_local">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.unit_error" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#541-543">source</a><a href="#method.unit_error" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.unit_error" class="fnname">unit_error</a>(self) -&gt; <a class="struct" href="struct.UnitError.html" title="struct futures::future::UnitError">UnitError</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.UnitError.html" title="struct futures::future::UnitError">UnitError</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.UnitError.html" title="struct futures::future::UnitError">UnitError</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, OkFn&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, OkFn&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Turns a <a href="trait.Future.html"><code>Future&lt;Output = T&gt;</code></a> into a
<a href="trait.TryFuture.html"><code>TryFuture&lt;Ok = T, Error = ()</code>&gt;</a>. <a href="trait.FutureExt.html#method.unit_error">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.never_error" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#550-552">source</a><a href="#method.never_error" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.never_error" class="fnname">never_error</a>(self) -&gt; <a class="struct" href="struct.NeverError.html" title="struct futures::future::NeverError">NeverError</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.NeverError.html" title="struct futures::future::NeverError">NeverError</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.NeverError.html" title="struct futures::future::NeverError">NeverError</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, OkFn&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a>&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;Fut, OkFn&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a>&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Turns a <a href="trait.Future.html"><code>Future&lt;Output = T&gt;</code></a> into a
<a href="trait.TryFuture.html"><code>TryFuture&lt;Ok = T, Error = Never</code>&gt;</a>. <a href="trait.FutureExt.html#method.never_error">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_unpin" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#558-560">source</a><a href="#method.poll_unpin" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.poll_unpin" class="fnname">poll_unpin</a>(&amp;mut self, cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</span></h4></section></summary><div class='docblock'>A convenience for calling <code>Future::poll</code> on <code>Unpin</code> future types.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.now_or_never" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/future/mod.rs.html#596-598">source</a><a href="#method.now_or_never" class="anchor"></a><h4 class="code-header">fn <a href="trait.FutureExt.html#method.now_or_never" class="fnname">now_or_never</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;</h4></section></summary><div class='docblock'>Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to <code>Future::poll</code>. <a href="trait.FutureExt.html#method.now_or_never">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#717">source</a><a href="#impl-Into%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#725">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-IntoFuture-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/future/into_future.rs.html#132">source</a><a href="#impl-IntoFuture-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;F&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html" title="trait core::future::into_future::IntoFuture">IntoFuture</a> for F<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Output-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Output-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;F as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a></h4></section></summary><div class='docblock'>The output that the future will produce on completion.</div></details><details class="rustdoc-toggle" open><summary><section id="associatedtype.IntoFuture" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.IntoFuture" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html#associatedtype.IntoFuture" class="associatedtype">IntoFuture</a> = F</h4></section></summary><div class='docblock'>Which kind of future are we turning this into?</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into_future" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/future/into_future.rs.html#136">source</a><a href="#method.into_future" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html#tymethod.into_future" class="fnname">into_future</a>(self) -&gt; &lt;F as <a class="trait" href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html" title="trait core::future::into_future::IntoFuture">IntoFuture</a>&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html#associatedtype.IntoFuture" title="type core::future::into_future::IntoFuture::IntoFuture">IntoFuture</a></h4></section></summary><div class='docblock'>Creates a future from a value. <a href="https://doc.rust-lang.org/nightly/core/future/into_future/trait.IntoFuture.html#tymethod.into_future">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#775">source</a><a href="#impl-TryFrom%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#781">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFuture-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_core/future.rs.html#73">source</a><a href="#impl-TryFuture-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;F, T, E&gt; <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> for F<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&lt;Output = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, E&gt;&gt; + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Ok" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Ok" class="anchor"></a><h4 class="code-header">type <a href="trait.TryFuture.html#associatedtype.Ok" class="associatedtype">Ok</a> = T</h4></section></summary><div class='docblock'>The type of successful values yielded by this future</div></details><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-2" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-2" class="anchor"></a><h4 class="code-header">type <a href="trait.TryFuture.html#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></summary><div class='docblock'>The type of failures yielded by this future</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_poll" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_core/future.rs.html#81">source</a><a href="#method.try_poll" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFuture.html#tymethod.try_poll" class="fnname">try_poll</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: <a class="struct" href="https://doc.rust-lang.org/nightly/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>F&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;&lt;F as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>&gt;</h4></section></summary><div class='docblock'>Poll this <code>TryFuture</code> as if it were a <code>Future</code>. <a href="trait.TryFuture.html#tymethod.try_poll">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFutureExt-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#134">source</a><a href="#impl-TryFutureExt-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;Fut&gt; <a class="trait" href="trait.TryFutureExt.html" title="trait futures::future::TryFutureExt">TryFutureExt</a> for Fut<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.flatten_sink" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#171-174">source</a><a href="#method.flatten_sink" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.flatten_sink" class="fnname">flatten_sink</a>&lt;Item&gt;(self) -&gt; <a class="struct" href="struct.FlattenSink.html" title="struct futures::future::FlattenSink">FlattenSink</a>&lt;Self, Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="../sink/trait.Sink.html" title="trait futures::sink::Sink">Sink</a>&lt;Item, Error = Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,</span></h4></section></summary><div class='docblock'>Flattens the execution of this future when the successful result of this
future is a <a href="../sink/trait.Sink.html" title="Sink"><code>Sink</code></a>. <a href="trait.TryFutureExt.html#method.flatten_sink">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map_ok" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#217-220">source</a><a href="#method.map_ok" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.map_ok" class="fnname">map_ok</a>&lt;T, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, MapOkFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, MapOkFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>) -&gt; T,</span></h4></section></summary><div class='docblock'>Maps this future’s success value to a different value. <a href="trait.TryFutureExt.html#method.map_ok">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map_ok_or_else" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#257-261">source</a><a href="#method.map_ok_or_else" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.map_ok_or_else" class="fnname">map_ok_or_else</a>&lt;T, E, F&gt;(self, e: E, f: F) -&gt; <a class="struct" href="struct.MapOkOrElse.html" title="struct futures::future::MapOkOrElse">MapOkOrElse</a>&lt;Self, F, E&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.MapOkOrElse.html" title="struct futures::future::MapOkOrElse">MapOkOrElse</a>&lt;Fut, F, G&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F, G&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.MapOkOrElse.html" title="struct futures::future::MapOkOrElse">MapOkOrElse</a>&lt;Fut, F, G&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, ChainFn&lt;MapOkFn&lt;F&gt;, ChainFn&lt;MapErrFn&lt;G&gt;, MergeResultFn&gt;&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, ChainFn&lt;MapOkFn&lt;F&gt;, ChainFn&lt;MapErrFn&lt;G&gt;, MergeResultFn&gt;&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>) -&gt; T,<br>&nbsp;&nbsp;&nbsp;&nbsp;E: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>) -&gt; T,</span></h4></section></summary><div class='docblock'>Maps this future’s success value to a different value, and permits for error handling resulting in the same type. <a href="trait.TryFutureExt.html#method.map_ok_or_else">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map_err" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#308-311">source</a><a href="#method.map_err" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.map_err" class="fnname">map_err</a>&lt;E, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, MapErrFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, MapErrFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>) -&gt; E,</span></h4></section></summary><div class='docblock'>Maps this future’s error value to a different value. <a href="trait.TryFutureExt.html#method.map_err">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.err_into" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#341-344">source</a><a href="#method.err_into" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.err_into" class="fnname">err_into</a>&lt;E&gt;(self) -&gt; <a class="struct" href="struct.ErrInto.html" title="struct futures::future::ErrInto">ErrInto</a>&lt;Self, E&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.ErrInto.html" title="struct futures::future::ErrInto">ErrInto</a>&lt;Fut, E&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, E&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.ErrInto.html" title="struct futures::future::ErrInto">ErrInto</a>&lt;Fut, E&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut, IntoFn&lt;E&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut, IntoFn&lt;E&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;E&gt;,</span></h4></section></summary><div class='docblock'>Maps this future’s <a href="trait.TryFuture.html#associatedtype.Error"><code>Error</code></a> to a new error type
using the <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"><code>Into</code></a> trait. <a href="trait.TryFutureExt.html#method.err_into">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ok_into" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#351-354">source</a><a href="#method.ok_into" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.ok_into" class="fnname">ok_into</a>&lt;U&gt;(self) -&gt; <a class="struct" href="struct.OkInto.html" title="struct futures::future::OkInto">OkInto</a>&lt;Self, U&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.OkInto.html" title="struct futures::future::OkInto">OkInto</a>&lt;Fut, E&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, E&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.OkInto.html" title="struct futures::future::OkInto">OkInto</a>&lt;Fut, E&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut, IntoFn&lt;E&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut, IntoFn&lt;E&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt;,</span></h4></section></summary><div class='docblock'>Maps this future’s <a href="trait.TryFuture.html#associatedtype.Ok"><code>Ok</code></a> to a new type
using the <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"><code>Into</code></a> trait. <a href="trait.TryFutureExt.html#method.ok_into">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.and_then" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#395-399">source</a><a href="#method.and_then" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.and_then" class="fnname">and_then</a>&lt;Fut, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.AndThen.html" title="struct futures::future::AndThen">AndThen</a>&lt;Self, Fut, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.AndThen.html" title="struct futures::future::AndThen">AndThen</a>&lt;Fut1, Fut2, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut1, Fut2, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.AndThen.html" title="struct futures::future::AndThen">AndThen</a>&lt;Fut1, Fut2, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.TryFlatten.html" title="struct futures::future::TryFlatten">TryFlatten</a>&lt;<a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut1, F&gt;, Fut2&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.TryFlatten.html" title="struct futures::future::TryFlatten">TryFlatten</a>&lt;<a class="struct" href="struct.MapOk.html" title="struct futures::future::MapOk">MapOk</a>&lt;Fut1, F&gt;, Fut2&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>) -&gt; Fut,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Error = Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,</span></h4></section></summary><div class='docblock'>Executes another future after this one resolves successfully. The
success value is passed to a closure to create this subsequent future. <a href="trait.TryFutureExt.html#method.and_then">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.or_else" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#440-444">source</a><a href="#method.or_else" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.or_else" class="fnname">or_else</a>&lt;Fut, F&gt;(self, f: F) -&gt; <a class="struct" href="struct.OrElse.html" title="struct futures::future::OrElse">OrElse</a>&lt;Self, Fut, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.OrElse.html" title="struct futures::future::OrElse">OrElse</a>&lt;Fut1, Fut2, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut1, Fut2, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.OrElse.html" title="struct futures::future::OrElse">OrElse</a>&lt;Fut1, Fut2, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;TryFlattenErr&lt;<a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut1, F&gt;, Fut2&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;TryFlattenErr&lt;<a class="struct" href="struct.MapErr.html" title="struct futures::future::MapErr">MapErr</a>&lt;Fut1, F&gt;, Fut2&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>) -&gt; Fut,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Ok = Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>&gt;,</span></h4></section></summary><div class='docblock'>Executes another future if this one resolves to an error. The
error value is passed to a closure to create this subsequent future. <a href="trait.TryFutureExt.html#method.or_else">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.inspect_ok" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#467-470">source</a><a href="#method.inspect_ok" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.inspect_ok" class="fnname">inspect_ok</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="struct.InspectOk.html" title="struct futures::future::InspectOk">InspectOk</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.InspectOk.html" title="struct futures::future::InspectOk">InspectOk</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.InspectOk.html" title="struct futures::future::InspectOk">InspectOk</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, InspectOkFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, InspectOkFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&amp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>),</span></h4></section></summary><div class='docblock'>Do something with the success value of a future before passing it on. <a href="trait.TryFutureExt.html#method.inspect_ok">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.inspect_err" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#493-496">source</a><a href="#method.inspect_err" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.inspect_err" class="fnname">inspect_err</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="struct.InspectErr.html" title="struct futures::future::InspectErr">InspectErr</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.InspectErr.html" title="struct futures::future::InspectErr">InspectErr</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.InspectErr.html" title="struct futures::future::InspectErr">InspectErr</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, InspectErrFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Inspect.html" title="struct futures::future::Inspect">Inspect</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, InspectErrFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&amp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>),</span></h4></section></summary><div class='docblock'>Do something with the error value of a future before passing it on. <a href="trait.TryFutureExt.html#method.inspect_err">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_flatten" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#505-508">source</a><a href="#method.try_flatten" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.try_flatten" class="fnname">try_flatten</a>(self) -&gt; <a class="struct" href="struct.TryFlatten.html" title="struct futures::future::TryFlatten">TryFlatten</a>&lt;Self, Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.TryFlatten.html" title="struct futures::future::TryFlatten">TryFlatten</a>&lt;Fut1, Fut2&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut1, Fut2&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.TryFlatten.html" title="struct futures::future::TryFlatten">TryFlatten</a>&lt;Fut1, Fut2&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;TryFlatten&lt;Fut1, Fut2&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;TryFlatten&lt;Fut1, Fut2&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&lt;Error = Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,</span></h4></section></summary><div class='docblock'>Flatten the execution of this future when the successful result of this
future is another future. <a href="trait.TryFutureExt.html#method.try_flatten">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_flatten_stream" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#538-541">source</a><a href="#method.try_flatten_stream" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.try_flatten_stream" class="fnname">try_flatten_stream</a>(self) -&gt; <a class="struct" href="struct.TryFlattenStream.html" title="struct futures::future::TryFlattenStream">TryFlattenStream</a>&lt;Self&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>: <a class="trait" href="../stream/trait.TryStream.html" title="trait futures::stream::TryStream">TryStream</a>&lt;Error = Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;,</span></h4></section></summary><div class='docblock'>Flatten the execution of this future when the successful result of this
future is a stream. <a href="trait.TryFutureExt.html#method.try_flatten_stream">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.unwrap_or_else" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#570-573">source</a><a href="#method.unwrap_or_else" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.unwrap_or_else" class="fnname">unwrap_or_else</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="struct.UnwrapOrElse.html" title="struct futures::future::UnwrapOrElse">UnwrapOrElse</a>&lt;Self, F&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.UnwrapOrElse.html" title="struct futures::future::UnwrapOrElse">UnwrapOrElse</a>&lt;Fut, F&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut, F&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.UnwrapOrElse.html" title="struct futures::future::UnwrapOrElse">UnwrapOrElse</a>&lt;Fut, F&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, UnwrapOrElseFn&lt;F&gt;&gt;: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = &lt;<a class="struct" href="struct.Map.html" title="struct futures::future::Map">Map</a>&lt;<a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;, UnwrapOrElseFn&lt;F&gt;&gt; as <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>&gt;::<a class="associatedtype" href="trait.Future.html#associatedtype.Output" title="type futures::future::Future::Output">Output</a>;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>) -&gt; Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>,</span></h4></section></summary><div class='docblock'>Unwraps this future’s output, producing a future with this future’s
<a href="trait.TryFuture.html#associatedtype.Ok"><code>Ok</code></a> type as its
<a href="trait.Future.html#associatedtype.Output"><code>Output</code></a> type. <a href="trait.TryFutureExt.html#method.unwrap_or_else">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into_future-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#610-612">source</a><a href="#method.into_future-1" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.into_future" class="fnname">into_future</a>(self) -&gt; <a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;Fut&gt; <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.IntoFuture.html" title="struct futures::future::IntoFuture">IntoFuture</a>&lt;Fut&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>,</span></span><span class="where fmt-newline"> type <a href="trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;&lt;Fut as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>, &lt;Fut as <a class="trait" href="trait.TryFuture.html" title="trait futures::future::TryFuture">TryFuture</a>&gt;::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Wraps a <a href="trait.TryFuture.html" title="TryFuture"><code>TryFuture</code></a> into a type that implements
<a href="trait.Future.html"><code>Future</code></a>. <a href="trait.TryFutureExt.html#method.into_future">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_poll_unpin" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/future/try_future/mod.rs.html#619-621">source</a><a href="#method.try_poll_unpin" class="anchor"></a><h4 class="code-header">fn <a href="trait.TryFutureExt.html#method.try_poll_unpin" class="fnname">try_poll_unpin</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Ok" title="type futures::future::TryFuture::Ok">Ok</a>, Self::<a class="associatedtype" href="trait.TryFuture.html#associatedtype.Error" title="type futures::future::TryFuture::Error">Error</a>&gt;&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</span></h4></section></summary><div class='docblock'>A convenience method for calling <a href="trait.TryFuture.html#tymethod.try_poll" title="TryFuture::try_poll"><code>TryFuture::try_poll</code></a> on <a href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="Unpin"><code>Unpin</code></a>
future types. <a href="trait.TryFutureExt.html#method.try_poll_unpin">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#760">source</a><a href="#impl-TryInto%3CU%3E-for-TryJoin4%3CFut1%2C%20Fut2%2C%20Fut3%2C%20Fut4%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#766">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="futures" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>