-record(step_config, {
    handler :: fun((telega@bot:context(any(), any()), telega@flow:flow_instance()) -> {ok,
            {telega@bot:context(any(), any()),
                telega@flow:flow_action(any()),
                telega@flow:flow_instance()}} |
        {error, any()}),
    middlewares :: list(fun((telega@bot:context(any(), any()), telega@flow:flow_instance(), fun(() -> {ok,
            {telega@bot:context(any(), any()),
                telega@flow:flow_action(any()),
                telega@flow:flow_instance()}} |
        {error, any()})) -> {ok,
            {telega@bot:context(any(), any()),
                telega@flow:flow_action(any()),
                telega@flow:flow_instance()}} |
        {error, any()}))
}).