export declare function parseViewport(value: string | undefined): {
    width: number;
    height: number;
} | undefined;
export declare function parseJsonArg<T = unknown>(value: string | undefined, name: string): T | undefined;
export declare function parseInteger(value: string | undefined, name: string): number | undefined;
export declare function parseBoolean(value: string | boolean | undefined): boolean | undefined;
//# sourceMappingURL=parse.d.ts.map