import { Core, AlphaCtx } from "../core";
import { Value } from "../value";
import { Env } from "../env";
export declare class LetCore extends Core {
    name: string;
    exp: Core;
    ret: Core;
    constructor(name: string, exp: Core, ret: Core);
    evaluate(env: Env): Value;
    repr(): string;
    alpha_repr(ctx: AlphaCtx): string;
}