code: def is_leaf_module(
      self, m: torch.nn.Module, module_qualified_name: str
  ) -> bool:
      if isinstance(m, RemoteModule):
          return True
      return False
  
file_path: fairscale/fairscale/experimental/nn/distributed_pipeline/trace.py
imports: import inspect
  import operator
  from typing import Dict, List, Optional, Tuple, cast
  from torch.distributed.nn import RemoteModule
  import torch.fx
  import torch.nn
  from .None import PipelineModulesGraph
label_desc: Use image node_id 1 for calling the RemoteModuleTracer obj's underlying member method code with example usage: obj.is_leaf_module(m, module_qualified_name) and returns: False, True