code: def generate(self):
      while True:
          yield (random.random() * 2) - 1.0
  
imports: import math
  import array
  import itertools
  import random
  from .audio_segment import AudioSegment
  from .utils import db_to_float, get_frame_width, get_array_type, get_min_max_value
label_desc: Use image node_id 1 for calling the WhiteNoise obj's underlying member method code with example usage: obj.generate() without return types