import { ErrorUnion, OkUnion } from '../outputs';
/**
 * Stops the downloading of a file. If a file has already been downloaded, does nothing
 * @param {Object} params
 * @param {number} [params.fileId] - Identifier of a file to stop downloading
 * @param {boolean} [params.onlyIfPending] - Pass true to stop downloading only if
 * it hasn't been started, i.e. request hasn't been sent to server
 * @param {Object} state
 * @returns {OkUnion | ErrorUnion}
 */
export declare type CancelDownloadFileMethod = <ResponseT = OkUnion>(params: CancelDownloadFileParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface CancelDownloadFileParams {
    /** Identifier of a file to stop downloading */
    fileId?: number;
    /**
     * Pass true to stop downloading only if it hasn't been started, i.e. request hasn't
     * been sent to server
     */
    onlyIfPending?: boolean;
}