code: async def verify_scriptworker_task(chain, obj):
      
      errors = []
      if obj.worker_impl != "scriptworker":
          errors.append("{} {} must be run from scriptworker!".format(obj.name, obj.task_id))
      raise_on_errors(errors)
docs: Verify the signing trust object.
  
      Currently the only check is to make sure it was run on a scriptworker.
  
      Args:
          chain (ChainOfTrust): the chain we're operating on
          obj (ChainOfTrust or LinkOfTrust): the trust object for the signing task.