code: def _sort_topk_votes(x, k):
      """
      Sort a dictionary of classes and corresponding vote totals according to the
      votes, then truncate to the highest 'k' classes.
      """
      y = sorted(x.items(), key=lambda x: x[1], reverse=True)[:k]
      return [{"class": i[0], "votes": i[1]} for i in y]
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import time
  import copy
  import array
  import logging
  import turicreate
  from turicreate.toolkits._model import CustomModel
  from turicreate.toolkits._internal_utils import _toolkit_repr_print
  from turicreate.toolkits._internal_utils import _raise_error_if_sframe_empty
  from turicreate.toolkits._internal_utils import _raise_error_if_not_sframe
  from turicreate.toolkits._internal_utils import _raise_error_if_column_exists
  from turicreate.toolkits._internal_utils import _raise_error_evaluation_metric_is_valid
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits import evaluation
  from turicreate.toolkits._model import PythonProxy
label_desc: Use image node_id 1 for calling a global function with example usage: _sort_topk_votes(x, k) and returns: unknown