def __init__(self, input_types, return_type):
    self.input_types = tuple(input_types)
    self.return_type = return_type 
    self._hash = hash(self.input_types + (return_type,))
dataset/ETHPy150Open iskandr/parakeet/parakeet/ndtypes/fn_type.py/FnT.__init__/original