class_docstr: Test functions defined in `functional` module
class_docstr_tok: ["Test","functions","defined","in","`","functional","`","module"]
code: def test_phaser(self):
      sample_rate = 8000
      n_channels = 2
      waveform = common_utils.get_whitenoise(
          sample_rate=sample_rate,
          n_channels=self.batch_size * n_channels,
          duration=1,
      )
      batch = waveform.view(
          self.batch_size, n_channels, waveform.size(-1)
      )
      kwargs = {
          "sample_rate": sample_rate,
      }
      func = partial(F.phaser, **kwargs)
      self.assert_batch_consistency(func, inputs=(batch,))
  
imports: import itertools
  import math
  from functools import partial
  import torch
  import torchaudio.functional
  from parameterized import parameterized, parameterized_class
  from torchaudio_unittest import common_utils
label_desc: Use image node_id 10 for calling the TestFunctional obj's underlying member method code with example usage: obj.test_phaser() without return types