/** One frame read off a Server-Sent Events stream. */
export interface SseFrame {
    /** The `event:` field, when the frame carried one. */
    name: string | undefined;
    /** The `id:` field, which on this API is the event's cursor. */
    id: string | undefined;
    /** The joined `data:` lines, still unparsed. */
    data: string;
}
/**
 * Reads Server-Sent Events out of a byte stream.
 *
 * Framing lives here rather than at the call site because the details are easy
 * to get subtly wrong: a line may end with a carriage return, a newline, or
 * both; a chunk may split a line ending in half; and comment frames — the
 * heartbeats that keep the connection alive through proxies — carry no data and
 * are dropped.
 */
export declare function readSseFrames(body: ReadableStream<Uint8Array<ArrayBuffer>>): AsyncGenerator<SseFrame>;
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