code: def _set_inputs_for_control_flow_op(inputs, blocks, op_type):
      """
      An utility function that set the dummy functional inputs and blocks inputs for
      control flow ops.
      """
      if op_type == "while_loop":
  
          def _dummy_cond(*loop_vars):
              return None
  
          def _dummy_body(*loop_vars):
              return None
  
          inputs["_existing_blocks"] = blocks
          inputs["_cond"] = _dummy_cond
          inputs["_body"] = _dummy_body
  
      elif op_type == "cond":
  
          def _dummy_true_fn(*loop_vars):
              return None
  
          def _dummy_false_fn(*loop_vars):
              return None
  
          inputs["_existing_blocks"] = blocks
          inputs["_true_fn"] = _dummy_true_fn
          inputs["_false_fn"] = _dummy_false_fn
  
imports: import os
  import numpy
  from coremltools import _logger
  from coremltools.converters.mil._deployment_compatibility import AvailableTarget
  from coremltools.converters.mil.backend.mil import helper
  from coremltools.converters.mil.mil import Block
  from coremltools.converters.mil.mil import Builder
  from coremltools.converters.mil.mil import Function, ListVar, Placeholder, Program, TupleInputType, Var, mil_list, types
  from coremltools.converters.mil.mil.block import curr_block
  from coremltools.converters.mil.mil.ops.registry import SSAOpRegistry
  from coremltools.proto import MIL_pb2
  from coremltools.proto import Model_pb2
  from .helper import proto_to_types
label_desc: Use image node_id 8 for calling a global function with example usage: _set_inputs_for_control_flow_op(inputs, blocks, op_type) and returns: None, None, None, None