def test_BoxMachineOperation(self, boxMachine) -> None:
assert boxMachine.open() == core.DNone()
assert boxMachine.close() == core.DNone()
assert boxMachine.put("123") == core.DNone()
assert boxMachine.get() == core.DStr()
def put(self, candy: str) -> core.DNone:
arg = core.DStr(candy)
return self.operate(
core.Operation("core", "Box", core.opTuple("put", [arg])))