import { TypeFlags } from '../type-flags';
import { Type, ISimpleType } from '../Type';
import { IContext, IValidationResult } from '../type-checker';
import { ObjectNode } from '../../core/ObjectNode';
import { INode } from '../../core/interface';
export declare class Literal<T> extends Type<T, T> {
    readonly shouldAttachNode: boolean;
    readonly value: any;
    readonly flags: TypeFlags;
    constructor(value: any);
    instantiate(parent: ObjectNode | null, subpath: string, environment: any, snapshot: T): INode;
    describe(): string;
    isValidSnapshot(value: any, context: IContext): IValidationResult;
}
export declare function literal<S>(value: S): ISimpleType<S>;