code: def test_mil_proto_to_pymil_with_version_handling(self):
      # This test makes sure the correct version of the op is picked up during mil_proto -> pymil conversion
  
      # iOS15 version program with iOS13 version topk
      @mb.program(
          input_specs=[mb.TensorSpec(shape=(1, 1, 4, 4))],
          opset_version=ct.target.iOS15,
      )
      def prog(x):
          x = mb.topk(x=x, k=1, axis=-1, ascending=True)
          return x
  
      iOS15_mlmodel = ct.convert(
          prog,
          convert_to="mlprogram",
          minimum_deployment_target=ct.target.iOS15,
          compute_units=ct.ComputeUnit.CPU_ONLY,
      )
      iOS15_pymil_prog = get_pymil_prog_from_mlmodel(iOS15_mlmodel)
      topk_op = iOS15_pymil_prog.functions["main"].find_ops(
          op_type="topk"
      )[0]
      assert not hasattr(topk_op, "sort")
  
      # iOS16 version program with iOS16 version topk
      @mb.program(
          input_specs=[mb.TensorSpec(shape=(1, 1, 4, 4))],
          opset_version=ct.target.iOS16,
      )
      def prog(x):
          x = mb.topk(x=x, k=1, axis=-1, ascending=True)
          return x
  
      iOS16_mlmodel = ct.convert(
          prog,
          convert_to="mlprogram",
          minimum_deployment_target=ct.target.iOS16,
          compute_units=ct.ComputeUnit.CPU_ONLY,
      )
      iOS16_pymil_prog = get_pymil_prog_from_mlmodel(iOS16_mlmodel)
      topk_op = iOS16_pymil_prog.functions["main"].find_ops(
          op_type="topk"
      )[0]
      assert hasattr(topk_op, "sort")
  
imports: import numpy
  import pytest
  import coremltools
  from coremltools import ComputeUnit
  from coremltools._deps import _HAS_TF_2, _HAS_TORCH
  from coremltools.converters._converters_entry import _get_metadata_from_mlmodel
  from coremltools.converters.mil import Builder
  from coremltools.converters.mil.converter import mil_convert
  from coremltools.converters.mil.frontend.milproto.load import load
  from coremltools.converters.mil.frontend.tensorflow.test.test_ops import TestTensorArray
  from coremltools.converters.mil.frontend.tensorflow.test.testing_utils import run_compare_tf
  from coremltools.converters.mil.mil.ops.tests.testing_utils import compare_backend
  from coremltools.converters.mil.testing_utils import get_op_names_in_program, get_op_types_in_program
label_desc: Use image node_id 2 for calling the TestLoadAPIUsage obj's underlying member method code with example usage: obj.test_mil_proto_to_pymil_with_version_handling() and returns: x, x