def _read_segment_file(self, data, idx, fi, start, stop, cals, mult):
        _read_segments_file(self, data, idx, fi, start, stop, cals, mult,
                            dtype=np.float32, trigger_ch=self._event_ch,
                            n_channels=self.info['nchan'] - 1)
Read a chunk of raw data
dataset/ETHPy150Open mne-tools/mne-python/mne/io/eeglab/eeglab.py/RawEEGLAB._read_segment_file