目录
作用请看 元数据
STRING = 1 << 0 NUM = 1 << 1 FLOAT = 1 << 2 ON = 1 << 1 OFF = 1 << 0 RETURN_ONCE = 1 << 0 RETURN_ITERABLE = 1 << 1 NO_RETURN = 1 << 3 NO_RETURN_SINGLE_FUNCTION = 1 << 4
函数