code: def __init__(self, *args, **kwargs):
      super(TestPickValueFromFixedRange, self).__init__(*args, **kwargs)
      self.session = tf.Session()
      self.clock_ph = tf.placeholder(dtype=tf.float64, name="clock")
  
imports: import unittest
  import numpy
  import tensorflow
  from deepspeech_training.util.helpers import ValueRange, get_value_range, pick_value_from_range, tf_pick_value_from_range
label_desc: Use image node_id 1 to create a new TestPickValueFromFixedRange object from inherited base classes: unittest with example: obj = TestPickValueFromFixedRange()