code: def test_float_1(self):
      self._ending_tester(
          ValueRange(10000.0, 30000.0, 10000.0),
          0.8,
          1.0,
          16000.0,
          40000.0,
      )
  
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 8 for calling the TestPickValueFromRandomizedRange obj's underlying member method code with example usage: obj.test_float_1() without return types