I am retrieving data from Feature Service Feature Class and Feature Service Table sources hosted on Portal (10.6) via a Python toolbox tool in ArcGIS Pro (currently 2.2.1). Some fields have coded domains, and naturally I want to return the domain values instead of the codes. I thought I could use arcpy.da.ListDomains or arcpy.DomainToTable_management to enable the lookups, except I can't find what to use as the "in_workspace" parameter for these (the service URL does not work). Currently fetching data with arcpy.da.TableToNumPyArray but could go to arcpy.da.SearchCursor although that returns codes, too. Am I out-of-luck?