interface SerializationConfig {
    placeholders: 'xlf' | 'mustache';
    plurals?: 'icu' | 'concat';
}
declare type StringText = {
    [key: string]: string;
} | string;
interface InputString {
    translations?: {
        [languageId: string]: {
            text: StringText;
        };
    };
    text?: StringText;
    hasPlurals?: boolean;
    identifier?: string;
}
/**
 * Function to convert source or translation according to specified config
 *
 * @param config conversion settings
 * @param string string
 * @param languageId language id
 * @returns converted string
 */
export declare function convertString(config: SerializationConfig, string: InputString, languageId?: string): string | undefined;
export {};