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<a class="reference internal nav-link" href="#factory-functions">
Factory Functions
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Array Types
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<div class="section" id="arrays-and-scalars">
<span id="api-array"></span><h1>Arrays and Scalars<a class="headerlink" href="#arrays-and-scalars" title="Permalink to this headline">¶</a></h1>
<div class="section" id="factory-functions">
<h2>Factory Functions<a class="headerlink" href="#factory-functions" title="Permalink to this headline">¶</a></h2>
<p>These functions create new Arrow arrays:</p>
<table class="longtable table autosummary">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.array.html#pyarrow.array" title="pyarrow.array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">array</span></code></a>(obj[, type, mask, size, from_pandas])</p></td>
<td><p>Create pyarrow.Array instance from a Python object.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.nulls.html#pyarrow.nulls" title="pyarrow.nulls"><code class="xref py py-obj docutils literal notranslate"><span class="pre">nulls</span></code></a>(size[, type])</p></td>
<td><p>Create a strongly-typed Array instance with all elements null.</p></td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="array-types">
<h2>Array Types<a class="headerlink" href="#array-types" title="Permalink to this headline">¶</a></h2>
<p>An array’s Python class depends on its data type. Concrete array classes
may expose data type-specific methods or properties.</p>
<table class="longtable table autosummary">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a>()</p></td>
<td><p>The base class for all Arrow arrays.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.BooleanArray.html#pyarrow.BooleanArray" title="pyarrow.BooleanArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">BooleanArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of boolean data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.FloatingPointArray.html#pyarrow.FloatingPointArray" title="pyarrow.FloatingPointArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FloatingPointArray</span></code></a></p></td>
<td><p>A base class for Arrow floating-point arrays.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.IntegerArray.html#pyarrow.IntegerArray" title="pyarrow.IntegerArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">IntegerArray</span></code></a></p></td>
<td><p>A base class for Arrow integer arrays.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Int8Array.html#pyarrow.Int8Array" title="pyarrow.Int8Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int8Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of int8 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Int16Array.html#pyarrow.Int16Array" title="pyarrow.Int16Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int16Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of int16 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Int32Array.html#pyarrow.Int32Array" title="pyarrow.Int32Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int32Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of int32 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Int64Array.html#pyarrow.Int64Array" title="pyarrow.Int64Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int64Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of int64 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.NullArray.html#pyarrow.NullArray" title="pyarrow.NullArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">NullArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of null data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.NumericArray.html#pyarrow.NumericArray" title="pyarrow.NumericArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">NumericArray</span></code></a></p></td>
<td><p>A base class for Arrow numeric arrays.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.UInt8Array.html#pyarrow.UInt8Array" title="pyarrow.UInt8Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt8Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of uint8 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.UInt16Array.html#pyarrow.UInt16Array" title="pyarrow.UInt16Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt16Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of uint16 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.UInt32Array.html#pyarrow.UInt32Array" title="pyarrow.UInt32Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt32Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of uint32 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.UInt64Array.html#pyarrow.UInt64Array" title="pyarrow.UInt64Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt64Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of uint64 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.BinaryArray.html#pyarrow.BinaryArray" title="pyarrow.BinaryArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">BinaryArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of variable-sized binary data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.StringArray.html#pyarrow.StringArray" title="pyarrow.StringArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">StringArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of string (or utf8) data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.FixedSizeBinaryArray.html#pyarrow.FixedSizeBinaryArray" title="pyarrow.FixedSizeBinaryArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FixedSizeBinaryArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of a fixed-size binary data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.LargeBinaryArray.html#pyarrow.LargeBinaryArray" title="pyarrow.LargeBinaryArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeBinaryArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of large variable-sized binary data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.LargeStringArray.html#pyarrow.LargeStringArray" title="pyarrow.LargeStringArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeStringArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of large string (or utf8) data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Time32Array.html#pyarrow.Time32Array" title="pyarrow.Time32Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Time32Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of time32 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Time64Array.html#pyarrow.Time64Array" title="pyarrow.Time64Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Time64Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of time64 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Date32Array.html#pyarrow.Date32Array" title="pyarrow.Date32Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Date32Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of date32 data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Date64Array.html#pyarrow.Date64Array" title="pyarrow.Date64Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Date64Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of date64 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.TimestampArray.html#pyarrow.TimestampArray" title="pyarrow.TimestampArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">TimestampArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of timestamp data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Decimal128Array.html#pyarrow.Decimal128Array" title="pyarrow.Decimal128Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Decimal128Array</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of decimal128 data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray" title="pyarrow.DictionaryArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DictionaryArray</span></code></a></p></td>
<td><p>Concrete class for dictionary-encoded Arrow arrays.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.ListArray.html#pyarrow.ListArray" title="pyarrow.ListArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">ListArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of a list data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.LargeListArray.html#pyarrow.LargeListArray" title="pyarrow.LargeListArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeListArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of a large list data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.StructArray.html#pyarrow.StructArray" title="pyarrow.StructArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">StructArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of a struct data type.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.UnionArray.html#pyarrow.UnionArray" title="pyarrow.UnionArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UnionArray</span></code></a></p></td>
<td><p>Concrete class for Arrow arrays of a Union data type.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.ExtensionArray.html#pyarrow.ExtensionArray" title="pyarrow.ExtensionArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">ExtensionArray</span></code></a></p></td>
<td><p>Concrete class for Arrow extension arrays.</p></td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="scalars">
<span id="api-scalar"></span><h2>Scalars<a class="headerlink" href="#scalars" title="Permalink to this headline">¶</a></h2>
<p>This function constructs a new Arrow scalar:</p>
<table class="longtable table autosummary">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.scalar.html#pyarrow.scalar" title="pyarrow.scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">scalar</span></code></a>(value[, type, from_pandas])</p></td>
<td><p>Create a pyarrow.Scalar instance from a Python object.</p></td>
</tr>
</tbody>
</table>
<p>A scalar’s python class depends on its data type. Concrete scalar
classes may expose data type-specific methods or properties.</p>
<table class="longtable table autosummary">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.NA.html#pyarrow.NA" title="pyarrow.NA"><code class="xref py py-obj docutils literal notranslate"><span class="pre">NA</span></code></a></p></td>
<td><p>NullScalar()</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Scalar.html#pyarrow.Scalar" title="pyarrow.Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Scalar</span></code></a>()</p></td>
<td><p>The base class for scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.BooleanScalar.html#pyarrow.BooleanScalar" title="pyarrow.BooleanScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">BooleanScalar</span></code></a></p></td>
<td><p>Concrete class for boolean scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Int8Scalar.html#pyarrow.Int8Scalar" title="pyarrow.Int8Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int8Scalar</span></code></a></p></td>
<td><p>Concrete class for int8 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Int16Scalar.html#pyarrow.Int16Scalar" title="pyarrow.Int16Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int16Scalar</span></code></a></p></td>
<td><p>Concrete class for int16 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Int32Scalar.html#pyarrow.Int32Scalar" title="pyarrow.Int32Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int32Scalar</span></code></a></p></td>
<td><p>Concrete class for int32 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Int64Scalar.html#pyarrow.Int64Scalar" title="pyarrow.Int64Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Int64Scalar</span></code></a></p></td>
<td><p>Concrete class for int64 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.UInt8Scalar.html#pyarrow.UInt8Scalar" title="pyarrow.UInt8Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt8Scalar</span></code></a></p></td>
<td><p>Concrete class for uint8 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.UInt16Scalar.html#pyarrow.UInt16Scalar" title="pyarrow.UInt16Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt16Scalar</span></code></a></p></td>
<td><p>Concrete class for uint16 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.UInt32Scalar.html#pyarrow.UInt32Scalar" title="pyarrow.UInt32Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt32Scalar</span></code></a></p></td>
<td><p>Concrete class for uint32 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.UInt64Scalar.html#pyarrow.UInt64Scalar" title="pyarrow.UInt64Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UInt64Scalar</span></code></a></p></td>
<td><p>Concrete class for uint64 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.FloatScalar.html#pyarrow.FloatScalar" title="pyarrow.FloatScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FloatScalar</span></code></a></p></td>
<td><p>Concrete class for float scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.DoubleScalar.html#pyarrow.DoubleScalar" title="pyarrow.DoubleScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DoubleScalar</span></code></a></p></td>
<td><p>Concrete class for double scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.BinaryScalar.html#pyarrow.BinaryScalar" title="pyarrow.BinaryScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">BinaryScalar</span></code></a></p></td>
<td><p>Concrete class for binary-like scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.StringScalar.html#pyarrow.StringScalar" title="pyarrow.StringScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">StringScalar</span></code></a></p></td>
<td><p>Concrete class for string-like (utf8) scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.FixedSizeBinaryScalar.html#pyarrow.FixedSizeBinaryScalar" title="pyarrow.FixedSizeBinaryScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FixedSizeBinaryScalar</span></code></a></p></td>
<td><p></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.LargeBinaryScalar.html#pyarrow.LargeBinaryScalar" title="pyarrow.LargeBinaryScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeBinaryScalar</span></code></a></p></td>
<td><p></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.LargeStringScalar.html#pyarrow.LargeStringScalar" title="pyarrow.LargeStringScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeStringScalar</span></code></a></p></td>
<td><p></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Time32Scalar.html#pyarrow.Time32Scalar" title="pyarrow.Time32Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Time32Scalar</span></code></a></p></td>
<td><p>Concrete class for time32 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Time64Scalar.html#pyarrow.Time64Scalar" title="pyarrow.Time64Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Time64Scalar</span></code></a></p></td>
<td><p>Concrete class for time64 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.Date32Scalar.html#pyarrow.Date32Scalar" title="pyarrow.Date32Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Date32Scalar</span></code></a></p></td>
<td><p>Concrete class for date32 scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Date64Scalar.html#pyarrow.Date64Scalar" title="pyarrow.Date64Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Date64Scalar</span></code></a></p></td>
<td><p>Concrete class for date64 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.TimestampScalar.html#pyarrow.TimestampScalar" title="pyarrow.TimestampScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">TimestampScalar</span></code></a></p></td>
<td><p>Concrete class for timestamp scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.Decimal128Scalar.html#pyarrow.Decimal128Scalar" title="pyarrow.Decimal128Scalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Decimal128Scalar</span></code></a></p></td>
<td><p>Concrete class for decimal128 scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.DictionaryScalar.html#pyarrow.DictionaryScalar" title="pyarrow.DictionaryScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DictionaryScalar</span></code></a></p></td>
<td><p>Concrete class for dictionary-encoded scalars.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.ListScalar.html#pyarrow.ListScalar" title="pyarrow.ListScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">ListScalar</span></code></a></p></td>
<td><p>Concrete class for list-like scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.LargeListScalar.html#pyarrow.LargeListScalar" title="pyarrow.LargeListScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeListScalar</span></code></a></p></td>
<td><p></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="../generated/pyarrow.StructScalar.html#pyarrow.StructScalar" title="pyarrow.StructScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">StructScalar</span></code></a></p></td>
<td><p>Concrete class for struct scalars.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="../generated/pyarrow.UnionScalar.html#pyarrow.UnionScalar" title="pyarrow.UnionScalar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UnionScalar</span></code></a></p></td>
<td><p>Concrete class for Union scalars.</p></td>
</tr>
</tbody>
</table>
</div>
</div>
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