proc add_viewport(self: Screen; camera: Camera) {....raises: [Exception],
    tags: [RootEffect].}

proc clear_all_callbacks(self: Screen) {....raises: [Exception], tags: [RootEffect].}

proc destroy(self: Screen) {....raises: [], tags: [].}

proc emulateMouseWithTouch(screen: Screen; touch: int32; ending: bool;
                           x, y: float32) {....raises: [Exception],
    tags: [RootEffect].}

proc get_pixels_at_depth(viewport: Viewport; depth: float32): float32 {.
    ...raises: [], tags: [].}

proc get_ray_direction(viewport: Viewport; position: Vec2): Vec3 {.
    ...raises: [ValueError], tags: [].}

proc get_ray_direction_local(viewport: Viewport; position: Vec2): Vec3 {.
    ...raises: [], tags: [].}

proc newScreen(engine: MyouEngine; width, height: int32; title: string): Screen {.
    ...raises: [Exception], tags: [RootEffect].}

proc resize(self: Screen; width, height: int32; orientation = self.orientation) {.
    ...raises: [Exception], tags: [RootEffect].}

proc size(self: Screen): IVec2 {.inline, ...raises: [], tags: [].}

proc switch(self: Screen): bool {.discardable, ...raises: [], tags: [].}

proc vsync=(self: Screen; vsync: bool) {....raises: [], tags: [].}