The input `info` :class:`dict` may contain attributes read
from the :class:`~hooke.playlist.FilePlaylist`.
- The `info` :class:`dict` must contain values for the keys:
- 'filetype' and 'experiment'. See :class:`hooke.curve.Curve`
- for details.
+ See :class:`hooke.curve.Curve` for details.
"""
raise NotImplementedError