type RClampRemOptions = {
    allowReverse?: boolean;
    minViewportDiff?: number;
    baseFontSize?: string | number;
    precision?: number;
};
export declare function rClampRem(minSize: string | number, maxSize: string | number, minViewport?: string | number, maxViewport?: string | number, options?: RClampRemOptions): string;
export {};
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