code: def __call__(self, prog):
      if len(self.passes) == 0:
          raise ValueError(
              "no pass functions associated with " + self.pass_name
          )
  
      for one_pass in self.passes:
          one_pass(prog)
          prog.validate()
  
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 2 for calling the PassContainer obj's underlying member method code with example usage: obj.__call__(prog) without return types