def set_dummy_playlists(self, playlists):
        self._playlists = playlists
Helper to raise an AssertionError, and optionally prepend custom description.
dataset/ETHPy150Open mopidy/mopidy/tests/dummy_backend.py/DummyPlaylistsProvider.set_dummy_playlists--crossover with--dataset/ETHPy150Open ActivisionGameScience/assertpy/assertpy/assertpy.py/AssertionBuilder._err