/**
 * Yields each line of a byte or text stream that parses as JSON. Skips blank and non-JSON lines: code fences, prose,
 * a cut-off last line.
 *
 * @example
 * for await (const value of streamJsonLines(result.textStream)) {
 *   if (isComponentEntry(value)) await saveEntry(value);
 * }
 *
 * @example
 * if (!res.body) throw new Error(`Generation failed (${res.status})`);
 * const entries = streamJsonLines<ComponentEntry>(res.body);
 */
export declare function streamJsonLines<T = unknown>(source: ReadableStream<Uint8Array | string> | AsyncIterable<string | Uint8Array>): AsyncGenerator<T>;