def get_next_value(self, node, edge):
        if self.states not in node:
            return None
        _node = self.states[node]['transitions']
        if _node is None or edge not in _node:
            return None
        return _node[edge]
dataset/ETHPy150Open christabor/MoAL/MOAL/automata_theory/finite_state_machine/fsm.py/FiniteStateMachine.get_next_value/swapped operands of `not in`