class_docstr: Benchmarks for various ops in TF Text.
class_docstr_tok: ["Benchmarks","for","various","ops","in","TF","Text","."]
code: def benchmark_case_fold_utf8(self):
      self._run(text_ops.case_fold_utf8)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl import app
  from absl import flags
  import numpy
  import tensorflow
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow_text.python import ops
  from tensorflow_text.python.benchmarks import benchmark_utils
label_desc: Use image node_id 5 for calling the OpsBenchmark obj's underlying member method code with example usage: obj.benchmark_case_fold_utf8() without return types