code: def __init__(self, topology: Topology) -> None:
      self._topology = topology
  
imports: from typing import cast, List
  from torchrec.distributed.planner.types import Perf, PerfModel, ShardingOption, Topology
label_desc: Use image node_id 1 to create a new NoopPerfModel object from inherited base classes: PerfModel with example: obj = NoopPerfModel(topology)