import { Brand } from "./internal";
import { DateLike } from "./DateLike";
export declare type Timestamp = string & Brand<"Timestamp">;
export declare function isTimestamp(x: any): x is Timestamp;
export declare function toTimestamp(x: DateLike): Timestamp;
export declare function timestampOrNull(x: string): Timestamp | null;
export declare function timestampOrThrow(x: string): Timestamp;
export declare function nowTimestamp(): Timestamp;