code: def generate(self):
      sine_of = (self.freq * 2 * math.pi) / self.sample_rate
      sample_n = 0
      while True:
          yield math.sin(sine_of * sample_n)
          sample_n += 1
  
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 2 for calling the Sine obj's underlying member method code with example usage: obj.generate() without return types