def __init__(self, name, transformer):
self.name = name
self.children = []
if isinstance(transformer, string_types):
transformer = get_transformer(transformer)
self.transformer = transformer
def test_get_transformer_by_name():
tda = get_transformer('stFtAudioeXtrActOr', base=Extractor)
assert isinstance(tda, STFTAudioExtractor)
