import { InputFileInputUnion } from '../inputs';
import { ErrorUnion, FileUnion } from '../outputs';
/**
 * Uploads a PNG image with a sticker; for bots only; returns the uploaded file
 * @param {Object} params
 * @param {number} [params.userId] - Sticker file owner
 * @param {InputFileInputUnion} [params.pngSticker] - PNG image with the sticker;
 * must be up to 512 kB in size and fit in 512x512 square
 * @param {Object} state
 * @returns {FileUnion | ErrorUnion}
 */
export declare type UploadStickerFileMethod = <ResponseT = FileUnion>(params: UploadStickerFileParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface UploadStickerFileParams {
    /** Sticker file owner */
    userId?: number;
    /** PNG image with the sticker; must be up to 512 kB in size and fit in 512x512 square */
    pngSticker?: InputFileInputUnion;
}