I need help to check/uncheck programmatically the setting "Use 1000 Separator" of Pop-up's "Configure Attributes" for a layer inside of Map Image Layer (Source: Map Service).
Saw a sample to change the Pop-up settings for item of WebMap (https://community.esri.com/t5/arcgis-api-for-python-questions/enable-popup-in-web-map/td-p/814850), but not for item of Map Image Layer.
The Pop-up settings can be changed and saved back to the Image Map Layer by "Save Layer" using Map Viewer.