import type { SseFrame } from "./types.js";
/**
 * Transport-level overflow: the peer sent a line or frame past the cap. The
 * client's bounded backoff treats this like any transport failure — the
 * alternative is unbounded memory growth on a hostile or stuck peer (ren
 * review).
 */
export declare class SseOverflowError extends Error {
    constructor(message: string);
}
/**
 * Incremental text/event-stream parser.
 *
 * Consumes a byte stream (fetch response body) and yields parsed frames.
 * Handles the Cortex wire shape: `event:`/`id:`/`data:` frames, multi-line
 * data, and `: comment` keep-alives. LF-only splitting is deliberate (the
 * pi RPC framing gotcha: splitting on Unicode line separators corrupts JSON
 * payloads). Both the line buffer and per-frame data accumulation are capped
 * at 1 MiB — overflow raises {@link SseOverflowError}.
 */
export declare function parseSse(body: ReadableStream<Uint8Array>, signal?: AbortSignal): AsyncGenerator<SseFrame>;
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