class_docstr: A class that uses prespecified normalization data.
class_docstr_tok: ["A","class","that","uses","prespecified","normalization","data","."]
code: def normalize_op(self, x):
      return tf.clip_by_value(self._a * x + self._b, -1.0, 1.0)
  
imports: import io
  import os
  from absl import logging
  import numpy
  import tensorflow.compat.v1
label_desc: Use image node_id 5 for calling the SpecgramsPrespecifiedNormalizer obj's underlying member method code with example usage: obj.normalize_op(x) and returns: tf