import type { ParseContext, SchemaNode } from "../types.js";
import { BaseSchema } from "./base.js";
export declare class RefSchema extends BaseSchema<unknown, unknown> {
    private _ref;
    private _resolver?;
    constructor(ref: string, resolver?: () => BaseSchema);
    _validate(input: unknown, ctx: ParseContext): unknown;
    _runPipeline(input: unknown, ctx: ParseContext): unknown;
    _toNode(): SchemaNode;
}
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