code: def __contains__(self, pass_id: Text) -> bool:
      return pass_id in self.passes
  
file_path: coremltools/coremltools/converters/mil/mil/passes/pass_registry.py
imports: import inspect
  from typing import Dict, Optional, Text, Type
  from coremltools import _logger
  from coremltools.converters.mil.mil.passes.graph_pass import AbstractGraphPass
label_desc: Use image node_id 3 for calling the PassRegistry obj's underlying member method code with example usage: obj.__contains__(pass_id) and returns: unknown