code: def _get_required_padding_sizes(graphs_tuple, padded_size):
      """Gets the padding size, given a GraphsTuple and the total padded sizes."""
      graph_size = get_graphs_tuple_size(graphs_tuple)
      return GraphsTupleSize(
          *(b - c for b, c in zip(padded_size, graph_size))
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import functools
  from absl import logging
  from graph_nets import graphs
  from graph_nets import utils_np
  import six
  from six.moves import range
  import tensorflow
  import tree
label_desc: Use image node_id 34 for calling a global function with example usage: _get_required_padding_sizes(graphs_tuple, padded_size) and returns: GraphsTupleSize