import { BaseError } from 'make-error';
import { Constrained } from '../../core';
export declare class InvalidISO8601FullDateError extends BaseError {
    constructor();
}
export declare const iso8601FullDateSymbol: unique symbol;
export type ISO8601FullDate = Constrained<typeof iso8601FullDateSymbol, string>;
export declare function isISO8601FullDate(input: unknown): input is ISO8601FullDate;
export declare function iso8601FullDate(input: unknown): ISO8601FullDate;