code: def add(self, pass_function):
      self.passes.append(pass_function)
  
imports: import itertools
  import warnings
  from functools import partial
  from coremltools.converters.mil.mil.passes.helper import block_context_manager
  from ...mil.passes import pass_registry
label_desc: Use image node_id 3 for calling the PassContainer obj's underlying member method code with example usage: obj.add(pass_function) without return types