code: def test_int_str_range(self):
      self._ending_tester("1:2", int, ValueRange(1, 2, 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 4 for calling the TestValueRange obj's underlying member method code with example usage: obj.test_int_str_range() without return types