declare abstract class Signable {
    static signature?: number;
}
export declare type Constructor<T> = (new (...args: unknown[]) => T) & {
    signature?: number;
};
export declare function getConstructor<T = Signable>(instance: T): Constructor<T>;
export declare function getSignature<T = Signable>(constructor: Constructor<T>): number;
export declare function isRegistered(constructor: Constructor<Signable>): boolean;
export default Signable;