docs: def appdata_roaming_dir():
      """Returns the roaming AppData directory for the installed ArcGIS Desktop."""
      install = arcpy.GetInstallInfo('desktop')
      app_data = arcpy.GetSystemEnvironment("APPDATA")
      product_dir = ''.join((install['ProductName'], major_version()))
      return os.path.join(app_data, 'ESRI', product_dir)