fix the clearAsync method
diff --git a/kv/src/main/kotlin/org/apache/tuweni/kv/KeyValueStore.kt b/kv/src/main/kotlin/org/apache/tuweni/kv/KeyValueStore.kt
index c7b6d0e..3f20621 100644
--- a/kv/src/main/kotlin/org/apache/tuweni/kv/KeyValueStore.kt
+++ b/kv/src/main/kotlin/org/apache/tuweni/kv/KeyValueStore.kt
@@ -86,6 +86,7 @@
 
   /**
    * Clears the contents of the store.
+   * @return An [AsyncCompletion] that will complete when the content is cleared.
    */
-  suspend fun clearAsync() = asyncResult { clear() }
+  fun clearAsync() = asyncCompletion { clear() }
 }