message: Use a raw string for docstring with TeX
diff: @@ -99,7 +99,7 @@ def linear_to_mel_weight_matrix(num_mel_bins=20,
  upper_edge_hertz=3800.0,
  dtype=dtypes.float32,
  name=None):
  - """Returns a matrix to warp linear scale spectrograms to the [mel scale][mel].
  + r"""Returns a matrix to warp linear scale spectrograms to the [mel scale][mel].
  Returns a weight matrix that can be used to re-weight a `Tensor` containing
  `num_spectrogram_bins` linearly sampled frequency information from
  