code: def testGetFeaturesRange(self):
      model_settings = {
          "preprocess": "average",
      }
      features_min, _ = input_data.get_features_range(model_settings)
      self.assertNear(0.0, features_min, 1e-5)
  
imports: import os
  import numpy
  import tensorflow
  from tensorflow.examples.speech_commands import input_data
  from tensorflow.examples.speech_commands import models
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
label_desc: Use image node_id 21 for calling the InputDataTest obj's underlying member method code with example usage: obj.testGetFeaturesRange() without return types