Add async parameter to extract_changes the function (FeatureCollection)

[GFlonk]

The extract_changes function of a FeatureLayerCollection in the Esri Python API (arcgis python library) does not have an "async" parameter that can be used to indicate whether changes should be retrieved asynchronously or not. This setting is needed in combination with "fields_to_compare" and "return_ids_only" to determine which fields of which objects have been changed.

When I look at the source code of the API, I see that the function does not have an "async" parameter and in the "params" dictionary "async" is forced to True. When I manually change this, I get the desired result, however, this is not a sustainable solution. Additionally, this is impossible to modify in a notebook on ArcGIS Online, for example.