server = {} server['SERVER_CONNECTION_FILE'] = serverConnection result = arcpy.mapping.ConvertWebMapToMapDocument(webmapJSON, templateMxd, extra_conversion_options=server)
dict = {"SERVER_CONNECTION_FILE":r"Z:\share\ArcGIS2 on MyServer (user).ags"} result = arcpy.mapping.ConvertWebMapToMapDocument(json, extra_conversion_options=dict)