      """ Suppresses the "Using x backend" message when importing
          backend from keras """
      stderr = sys.stderr
      sys.stderr = open(os.devnull, 'w')
      from keras import backend as K
      sys.stderr = stderr
      return K
  
  
  def set_system_verbosity(loglevel):
 
</s> remove     """ Suppresses the "Using x backend" message when importing
        backend from keras """
 </s> add     """ Suppresses the "Using x backend" message when importing backend from keras.

    Make sure output is redirected back to stderr if there is an error. """ </s> remove         convert_to_secs(hours, mins, secs). """
 </s> add         convert_to_secs(hours, minutes, secs). """
    try:
        from keras import backend as K  # pylint:disable=import-outside-toplevel
    except:
        sys.stderr = stderr
        raise
      """ Suppresses the "Using x backend" message when importing
          backend from keras """
      stderr = sys.stderr
      sys.stderr = open(os.devnull, 'w')
    try:
        from keras import backend as K  # pylint:disable=import-outside-toplevel
    except:
        sys.stderr = stderr
        raise
      sys.stderr = stderr
      return K
  
  
  def set_system_verbosity(loglevel):
keep keep keep keep replace keep keep keep keep keep
 bugfix: Extract - raise error if Keras fails to import 
lib/utils.py