code: def manipulate(self, data, shift):
      aug_data = np.roll(data.copy(), shift)
      # Set to silence for heading/ tailing
      if shift > 0:
          aug_data[:shift] = 0
      else:
          aug_data[shift:] = 0
      return aug_data
  
imports: import numpy
  from nlpaug.model.audio import Audio
label_desc: Use image node_id 2 for calling the Shift obj's underlying member method code with example usage: obj.manipulate(data, shift) and returns: aug_data