import * as t from "io-ts";
import { Validation } from "io-ts";
export declare class JSONType<RT> extends t.Type<RT, string, unknown> {
    type: t.Type<RT>;
    name: string;
    readonly _tag: "JSONType";
    constructor(type: t.Type<RT>, name?: string);
    decode(input: any): Validation<RT>;
}
export declare const json: <T>(baseType: t.Type<T, T, unknown>, name?: string | undefined) => JSONType<T>;