code: def has_non_trivial_stride(indexer):
      def has(idx):
          return isinstance(idx, slice) and idx.step not in (
              1,
              -1,
              None,
          )
  
      return any(has(idx) for idx in nest.flatten(indexer))
  
imports: import collections
  import enum
  from functools import partial
  import itertools
  import unittest
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import config
  from tensorflow.python.ops.numpy_ops.tests.config import config
  import tensorflow.python.ops.numpy_ops.tests.extensions
  import tensorflow.python.ops.numpy_ops.tests.np_wrapper
  import tensorflow.python.ops.numpy_ops.tests.test_util
  from tensorflow.python.util import nest
label_desc: Use image node_id 6 for calling a global function with example usage: has_non_trivial_stride(indexer) and returns: any, unknown