code: def __init__(self, tracer: RemoteModuleTracer) -> None:
      self.tracer = tracer
  
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 to create a new GraphCreator object  with example: obj = GraphCreator(tracer)