code: def _check_tensors(tensors, tensors_name):
      """Helper function to check the type and length of tensors."""
      _check_type(tensors, tensors_name, (list, tuple))
      if len(tensors) < 2:
          raise ValueError("At least 2 tensors are required.")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import itertools
  from typing import Any, List, Optional, Tuple, Union
  import numpy
  import six
  from six.moves import range
  from six.moves import zip
  import tensorflow
label_desc: Use image node_id 8 for calling a global function with example usage: _check_tensors(tensors, tensors_name) without return types