/**
 * em を px に変換し、数値として返す
 * @param {number|string} em
 * @param {number|string} baseFontSize
 * @returns {number}
 */
type EmToPxRawOptions = {
    precision?: number;
    errorMessage?: string;
};
export declare function emToPxRaw(em: string | number, baseFontSize: string | number, options?: EmToPxRawOptions): number;
export {};
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