Arcpy GPServer - Group Layer as Result Map Service

Question

Hello, When I publish the KmlToLayer as below, I can publish the Group Layer as a map service. Gp Server publishes group layer parameter type as GpString and can display it as Map Service. But when I try to do the same output with Arcpy as follows, the lyr file is only recognized as a file and the result map service is empty. result_gl = arcpy.mapping.ListLayers(mxd, "GroupLayer", df)[0] # ... result_group_layer_path = arcpy.env.scratchWorkspace + "\" + "scratch.lyr" arcpy.SaveToLayerFile_management(result_gl , result_group_layer_path) # ... # Only this one adds result layer to display others not. arcpy.SetParameterAsText(1, result_group_layer_path)‍‍‍‍‍‍‍‍‍‍‍‍ # Or # arcpy.SetParameter(1, result_gl)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ # Or # arcpy.SetParameter(1, arcpy.mapping.Layer(result_group_layer_path))‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ When I publish this with "View results with a map service option" , the output parameter is as follows not as a map service. { "paramName": "RESULT", "dataType": "GPDataFile", "value": { "url": "https://....gpserver/j069a1ca799304125882f8e172a4626b5/scratch/scratch.lyr" } }‍‍‍‍‍‍‍‍‍‍‍‍‍‍ What is the difference between the KmlToLayer model above and the my ArcPy model outputs? What should I do in order for the ArcGIS server to display the result lyr file (group layer) as a map service?

tolgastertolgaster · Answer

The real problem I want to address above is: I am generating an unknown number of raster layers as a result of my model. Since the result parameter count is not definite, I want to create the group layer dynamically and publish it as a single result parameter (group layer).

Has anyone ever had to produce dynamic output layers?  or is there something I'm doing all wrong?