code: def choose_meta_graph_def(saved_model):
      """Find a MetaGraphDef in the SavedModel with tag `constants.TRANSFORM_TAG`.
  
      Args:
        saved_model: A `SavedModel` protocol buffer.
  
      Returns:
        The chosen `MetaGraphDef` protocol buffer.  This can be used to further
        extract signature-defs, collection-defs, etc. If tags cannot be found,
        returns None.
      """
      return _choose_meta_graph_def_internal(
          saved_model, [constants.TRANSFORM_TAG]
      )
  
imports: from tensorflow_transform.saved import constants
  from tensorflow.python.saved_model import loader_impl
label_desc: Use image node_id 3 for calling a global function with example usage: choose_meta_graph_def(saved_model) and returns: _choose_meta_graph_def_internal