Method callback

tests/2_daxa_api/6_task_graph/main.cpp:102–108

        int i = {};
        AttachmentViews views = {};
        void callback(daxa::TaskInterface ti)
        {
            auto const & AT = ExampleTaskHead::AT;
            [[maybe_unused]] auto id = ti.id(AT.buffer0);

            printf("sum: %f\n", f + i);
        }
    };

    void head_task_syntax()