export interface AnyCtor<T> {
    new (...args: Array<any>): T;
    prototype: {};
}
export interface IdentityBill {
    grants: ReadonlyArray<string>;
    isIdentified: boolean;
    isAnonymous: boolean;
}
export declare abstract class IdentifiedBillBase {
    readonly grants: ReadonlyArray<string>;
    constructor(grants: ReadonlyArray<string>);
    readonly isIdentified: true;
    readonly isAnonymous: false;
}
export declare class IdentifiedBill<TPrincipal, TCredential> extends IdentifiedBillBase {
    readonly principal: TPrincipal;
    readonly credential: TCredential;
    constructor(principal: TPrincipal, credential: TCredential, grants: ReadonlyArray<string>);
}
export declare class AnonymousBill implements IdentityBill {
    readonly grants: ReadonlyArray<string>;
    constructor(grants: ReadonlyArray<string>);
    readonly isIdentified: false;
    readonly isAnonymous: true;
}