/**
 * This is flowR's custom JSON replacer, used to stringify flowR-internal structures.
 * @see {@link jsonBigIntRetriever}
 * @see {@link superBigJsonStringify}
 */
export declare function jsonReplacer(key: unknown, value: unknown): unknown;
/**
 * This is flowR's custom JSON retriever, used to parse flowR-internal structures.
 * @see {@link jsonReplacer}
 * @see {@link superBigJsonStringify}
 */
export declare function jsonBigIntRetriever(key: string, value: unknown): unknown;
/**
 * Stringifies potentially very large objects to JSON, sending chunks to the provided send function.
 */
export declare function superBigJsonStringify(obj: unknown, end: string, send: (s: string) => void): void;