docs: def _set_property(self, name, value):
          """
          Set property `name` to `value`, but only if it is part of the mapping
          returned from `worker_mapping` (ie - data transported to frontend).
  
          This method is used from the REST API DB, so it knows what to set and
          what not, to prevent users from setting internal values.
  
          Args:
              name (str): Name of the property to set.
              value (obj): Any python value.
  
          Raises:
              KeyError: If `name` can't be set.
          """
          if name in worker_mapping().keys():
              setattr(self, name, value)
              return
  
          raise KeyError("Can't set `%s`!" % name)