docs: def taskFailed(self, *args, **kwargs):
          """
          Task Failed Messages
  
          When a task ran, but failed to complete successfully a message is posted
          to this exchange. This is same as worker ran task-specific code, but the
          task specific code exited non-zero.
  
          This exchange outputs: ``v1/task-failed-message.json#``This exchange takes the following keys:
  
           * routingKeyKind: Identifier for the routing-key kind. This is always `'primary'` for the formalized routing key. (required)
  
           * taskId: `taskId` for the task this message concerns (required)
  
           * runId: `runId` of latest run for the task, `_` if no run is exists for the task.
  
           * workerGroup: `workerGroup` of latest run for the task, `_` if no run is exists for the task.
  
           * workerId: `workerId` of latest run for the task, `_` if no run is exists for the task.
  
           * provisionerId: `provisionerId` this task is targeted at. (required)
  
           * workerType: `workerType` this task must run on. (required)
  
           * schedulerId: `schedulerId` this task was created by. (required)
  
           * taskGroupId: `taskGroupId` this task was created in. (required)
  
           * reserved: Space reserved for future routing-key entries, you should always match this entry with `#`. As automatically done by our tooling, if not specified.
          """
  
          ref = {
              'exchange': 'task-failed',
              'name': 'taskFailed',
              'routingKey': [
                  {
                      'constant': 'primary',
                      'multipleWords': False,
                      'name': 'routingKeyKind',
                  },
                  {
                      'multipleWords': False,
                      'name': 'taskId',
                  },
                  {
                      'multipleWords': False,
                      'name': 'runId',
                  },
                  {
                      'multipleWords': False,
                      'name': 'workerGroup',
                  },
                  {
                      'multipleWords': False,
                      'name': 'workerId',
                  },
                  {
                      'multipleWords': False,
                      'name': 'provisionerId',
                  },
                  {
                      'multipleWords': False,
                      'name': 'workerType',
                  },
                  {
                      'multipleWords': False,
                      'name': 'schedulerId',
                  },
                  {
                      'multipleWords': False,
                      'name': 'taskGroupId',
                  },
                  {
                      'multipleWords': True,
                      'name': 'reserved',
                  },
              ],
              'schema': 'v1/task-failed-message.json#',
          }
          return self._makeTopicExchange(ref, *args, **kwargs)