export declare const VIEWPORT_WIDTH_MIN = 320;
export declare const VIEWPORT_WIDTH_MAX = 3840;
export declare const VIEWPORT_HEIGHT_MIN = 240;
export declare const VIEWPORT_HEIGHT_MAX = 2160;
export interface ViewportSize {
    width: number;
    height: number;
}
export declare function isViewportWithinBounds(width: number, height: number): boolean;
export declare function parseViewportString(raw: string | undefined): ViewportSize | undefined;
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