docs: def read_frames(self, nframes, dtype=np.float64):
          """Read nframes frames of the file.
  
          :Parameters:
              nframes : int
                  number of frames to read.
              dtype : numpy dtype
                  dtype of the returned array containing read data (see note).
  
          Notes
          -----
  
          - read_frames updates the read pointer.
          - One column is one channel (one row per channel after 0.9)
          - if float are requested when the file contains integer data, you will
            get normalized data (that is the max possible integer will be 1.0,
            and the minimal possible value -1.0).
          - if integers are requested when the file contains floating point data,
            it may give wrong results because there is an ambiguity: if the
            floating data are normalized, you can get a file with only 0 !
            Getting integer data from files encoded in normalized floating point
            is not supported (yet: sndfile supports it)."""
          return self._sndfile.read_frames(nframes, dtype)