import { Ctx } from "../../ctx";
import { Core } from "../../core";
import { Value } from "../../value";
import { Solution } from "../../solution";
export declare class VecValue extends Value {
    head: Value;
    tail: Value;
    constructor(head: Value, tail: Value);
    readback(ctx: Ctx, t: Value): Core | undefined;
    unify(solution: Solution, that: Value): Solution;
}