export interface UnsubscriptionError extends Error {
    readonly errors: any[];
}
export interface UnsubscriptionErrorCtor {
    new (errors: any[]): UnsubscriptionError;
}
/**
 * An error thrown when one or more errors have occurred during the
 * `unsubscribe` of a {@link Subscription}.
 */
export declare const UnsubscriptionError: UnsubscriptionErrorCtor;
