import { EntityFormat, FormatConverter, ConversionContext } from '../types';

/**
 * Generic converter that normalizes various string entity references (cdn urls, content-ref, raw topic id)
 * into canonical HRL. It declares source ANY -> HRL and internally short-circuits if unsupported.
 */
export declare class StringNormalizationConverter implements FormatConverter<string, string> {
    sourceFormat: EntityFormat;
    targetFormat: EntityFormat;
    private static standardCache;
    canConvert(source: string, _context: ConversionContext): boolean;
    convert(source: string, context: ConversionContext): Promise<string>;
}