import { CharacterArg, TextType } from '..';
import { AnyExpression, Expression } from '../../expressions';
import { ConstraintConfig } from '../../functions';
import { Type } from '../index';
export declare const UUID: () => UUIDType<true>;
export declare type UUIDArg = UUIDType['argument'];
export interface UUIDType<R extends boolean = any> extends Type<'UUID', R> {
    expression: UUIDExpression<R>;
    argument: Expression<UUIDType> | this['input'];
    required(conf?: ConstraintConfig): UUIDType<false>;
}
export interface UUIDExpression<R extends boolean = any> extends AnyExpression<UUIDType<R>> {
    concat(arg: CharacterArg): Expression<TextType<R>>;
}