export declare function parseStyleLength(value: unknown): string | null;
export declare function parsePxNumber(length: string): number | null;
export declare function parseStyleAspectRatio(value: unknown): number | null;
export declare function formatPx(value: number): string;
export declare function minPx(a: string, b: string): string | null;
export declare function maxPx(a: string, b: string): string | null;
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