code: def test_invalid_converter_minimum_deployment_flag(self):
      with pytest.raises(TypeError) as e:
          converter.convert(
              None,
              source="tensorflow",
              minimum_deployment_target="iOs14",
          )
          expected_msg = (
              "Unrecognized value of argument 'minimum_deployment_target': iOs14. "
              "It needs to be a member of 'coremltools.target' enumeration"
          )
  
          e.match(expected_msg)
  
imports: import os
  import shutil
  import tempfile
  import numpy
  import pytest
  import coremltools
  import coremltools.converters
  import coremltools.proto.FeatureTypes_pb2
  from coremltools import EnumeratedShapes, ImageType, RangeDim, TensorType
  from coremltools._deps import _HAS_TF_1, _IS_MACOS, MSG_TF1_NOT_FOUND
  from coremltools.converters.mil.frontend.tensorflow.converter import TFConverter
  from coremltools.converters.mil.frontend.tensorflow.test.testing_utils import TensorFlowBaseTest, get_tf_keras_io_names, make_tf_graph
  from coremltools.converters.mil.testing_reqs import backends
  from coremltools.converters.mil.testing_utils import random_gen
label_desc: Use image node_id 12 for calling the TestTf1ModelFormats obj's underlying member method code with example usage: obj.test_invalid_converter_minimum_deployment_flag() without return types