import { type DecodeContext, type RTError, Type } from './type.js';
import { type Result } from './utils.js';
export declare class LazyType<T> extends Type<T> {
    def: () => Type<T>;
    type?: Type<T>;
    private _printing;
    constructor(def: () => Type<T>);
    print(): string;
    decode(u: unknown, opts: DecodeContext): Result<T, RTError>;
    validate(v: T, opts: DecodeContext): Promise<Result<T, RTError>>;
    validateSync(v: T, opts: DecodeContext): Result<T, RTError>;
    deepMap(fn: (t: Type<unknown>) => Type<unknown>): Type<unknown>;
}
export declare function lazy<T>(def: () => Type<T>): LazyType<T>;