docs: def single(self, trigger_id, full=False):
          """
          Get an existing (full) trigger definition.
  
          :param trigger_id: Trigger definition id to be retrieved.
          :param full: Fetch the full definition, default is False.
          :return: Trigger of FullTrigger depending on the full parameter value.
          """
          if full:
              returned_dict = self._get(self._service_url(['triggers', 'trigger', trigger_id]))
              return FullTrigger(returned_dict)
          else:
              returned_dict = self._get(self._service_url(['triggers', trigger_id]))
              return Trigger(returned_dict)