class_docstr: Test functions defined in `functional` module
class_docstr_tok: ["Test","functions","defined","in","`","functional","`","module"]
code: def test_rtf_evd(self):
      batch_size = 2
      channel = 4
      n_fft_bin = 5
      spectrum = torch.rand(
          batch_size, n_fft_bin, channel, dtype=torch.cfloat
      )
      psd = torch.einsum("...c,...d->...cd", spectrum, spectrum.conj())
      self.assert_batch_consistency(F.rtf_evd, (psd,))
  
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 22 for calling the TestFunctional obj's underlying member method code with example usage: obj.test_rtf_evd() without return types