code: def add_convert_subparser(subparsers):
      """Add parser for `convert`."""
      convert_msg = (
          "Usage example:\n"
          "To convert the SavedModel to one that have TensorRT ops:\n"
          "$saved_model_cli convert \\\n"
          "   --dir /tmp/saved_model \\\n"
          "   --tag_set serve \\\n"
          "   --output_dir /tmp/saved_model_trt \\\n"
          "   tensorrt \n"
      )
      parser_convert = subparsers.add_parser(
          "convert",
          description=convert_msg,
          formatter_class=argparse.RawTextHelpFormatter,
      )
      convert_subparsers = parser_convert.add_subparsers(
          title="conversion methods",
          description="valid conversion methods",
          help="the conversion to run with the SavedModel",
      )
      parser_convert_with_tensorrt = convert_subparsers.add_parser(
          "tensorrt",
          description="Convert the SavedModel with Tensorflow-TensorRT integration",
          formatter_class=argparse.RawTextHelpFormatter,
      )
      parser_convert_with_tensorrt.set_defaults(
          func=convert_with_tensorrt
      )
  
imports: import argparse
  import platform
  import ast
  import os
  import re
  from absl import app
  from absl import flags
  from absl.flags import argparse_flags
  import numpy
  from tensorflow.core.example import example_pb2
  from tensorflow.core.framework import types_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.python.client import session
  from tensorflow.python.debug.wrappers import local_cli_wrapper
  from tensorflow.python.eager import def_function
  from tensorflow.python.eager import function
  from tensorflow.python.framework import meta_graph
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.saved_model import load
  from tensorflow.python.saved_model import load_options
  from tensorflow.python.saved_model import loader
  from tensorflow.python.saved_model import save
  from tensorflow.python.saved_model import signature_constants
  from tensorflow.python.tools import saved_model_aot_compile
  from tensorflow.python.tools import saved_model_utils
  from tensorflow.python.tpu import tpu
  from tensorflow.python.util.compat import collections_abc
label_desc: Use image node_id 33 for calling a global function with example usage: add_convert_subparser(subparsers) without return types