declare type TShouldBlockSelfToJSON<K, V> = Date | Map<K, V> | Set<V>;
export declare const blockSelfToJSON: <K, V>(target: TShouldBlockSelfToJSON<K, V>) => {
    toJSON: undefined;
};
export declare const shouldBlockSelfToJSON: <K, V>(target: unknown) => target is TShouldBlockSelfToJSON<K, V>;
export {};