import * as authly from "authly";
export declare class Verifier<T extends authly.Payload> {
    private backends;
    private constructor();
    verify(token: string | authly.Token | undefined): Promise<T | undefined>;
    add(...argument: (authly.Property.Transformer | undefined)[]): Verifier<T>;
    static create<T>(): Verifier<T & authly.Payload>;
}