import { type BodyParserMultipartConfig } from '../types.ts';
/**
 * Prepares configuration for multipart form data parsing by converting
 * size limits from strings to bytes and configuring value normalization.
 *
 * @param config - Multipart body parser configuration
 */
export declare function prepareMultipartConfig(config: Partial<BodyParserMultipartConfig>): {
    limit?: number;
    fieldsLimit?: number;
    maxFields?: number;
    normalizer?: undefined | ((value: string) => string | null);
};