code: def scan():
      """Function triggered by scan command."""
      if _SMCLI_TAG_SET.value and _SMCLI_OP_DENYLIST.value:
          scan_meta_graph_def(
              saved_model_utils.get_meta_graph_def(
                  _SMCLI_DIR.value, _SMCLI_TAG_SET.value
              ),
              _get_op_denylist_set(_SMCLI_OP_DENYLIST.value),
          )
      elif _SMCLI_TAG_SET.value:
          scan_meta_graph_def(
              saved_model_utils.get_meta_graph_def(
                  _SMCLI_DIR.value, _SMCLI_TAG_SET.value
              ),
              _OP_DENYLIST,
          )
      else:
          saved_model = saved_model_utils.read_saved_model(
              _SMCLI_DIR.value
          )
          if _SMCLI_OP_DENYLIST.value:
              for meta_graph_def in saved_model.meta_graphs:
                  scan_meta_graph_def(
                      meta_graph_def,
                      _get_op_denylist_set(_SMCLI_OP_DENYLIST.value),
                  )
          else:
              for meta_graph_def in saved_model.meta_graphs:
                  scan_meta_graph_def(meta_graph_def, _OP_DENYLIST)
  
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 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 26 for calling a global function with example usage: scan() without return types