code: def append_log_content(self, upload_stream, scope_identifier, hub_name, plan_id, log_id, **kwargs):
          
          route_values = {}
          if scope_identifier is not None:
              route_values['scopeIdentifier'] = self._serialize.url('scope_identifier', scope_identifier, 'str')
          if hub_name is not None:
              route_values['hubName'] = self._serialize.url('hub_name', hub_name, 'str')
          if plan_id is not None:
              route_values['planId'] = self._serialize.url('plan_id', plan_id, 'str')
          if log_id is not None:
              route_values['logId'] = self._serialize.url('log_id', log_id, 'int')
          if "callback" in kwargs:
              callback = kwargs["callback"]
          else:
              callback = None
          content = self._client.stream_upload(upload_stream, callback=callback)
          response = self._send(http_method='POST',
                                location_id='46f5667d-263a-4684-91b1-dff7fdcf64e2',
                                version='5.0',
                                route_values=route_values,
                                content=content,
                                media_type='application/octet-stream')
          return self._deserialize('TaskLog', response)
docs: AppendLogContent.
          :param object upload_stream: Stream to upload
          :param str scope_identifier: The project GUID to scope the request
          :param str hub_name: The name of the server hub: "build" for the Build server or "rm" for the Release Management server
          :param str plan_id:
          :param int log_id:
          :rtype: :class:`<TaskLog> <azure.devops.v5_0.task.models.TaskLog>`