I have a custom plugin (gdscript) derived from EditorImportPlugin.
How do I inform the Editor UI for the progress the actual import process has made?
( I noticed that my import takes a long time, the editor has not user feedback at all (much worse, on windows the editor window show a "not responding" message, obviously because the work happens on the UI thread only) )
Is there a method to inform the user of my plugin that it has not stopped working?