code: def worker_rank(self) -> int:
      is_global_zero = self.global_rank == 0
      return (
          self.global_rank
          + self.worker_id
          + int(not is_global_zero and self.num_workers > 1)
      )
  
file_path: lightning-flash/src/flash/image/classification/integrations/learn2learn.py
imports: from typing import Any, Callable, Optional
  import pytorch_lightning
  from torch.utils.data import IterableDataset
  from torch.utils.data._utils.worker import get_worker_info
  from flash.core.data.utilities.collate import default_collate
  from flash.core.utilities.imports import requires
label_desc: Use image node_id 4 for calling the TaskDistributedDataParallel obj's underlying member method code with example usage: obj.worker_rank() and returns: unknown