import { InputFileInputUnion } from '../inputs';
import { ErrorUnion, OkUnion } from '../outputs';
/**
 * Adds a new sticker to the list of favorite stickers. The new sticker is added to
 * the top of the list. If the sticker was already in the list, it is removed from the
 * list first. Only stickers belonging to a sticker set can be added to this list
 * @param {Object} params
 * @param {InputFileInputUnion} [params.sticker] - Sticker file to add
 * @param {Object} state
 * @returns {OkUnion | ErrorUnion}
 */
export declare type AddFavoriteStickerMethod = <ResponseT = OkUnion>(params: AddFavoriteStickerParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface AddFavoriteStickerParams {
    /** Sticker file to add */
    sticker?: InputFileInputUnion;
}