/** Maximum decoded provider SSE data retained or parsed in one pass. */
export declare const MAX_PROVIDER_SSE_BUFFER_CODE_UNITS: number;
/**
 * Parse a bounded provider SSE buffer.
 *
 * CR, LF, and CRLF framing are accepted. Malformed JSON and buffers above the
 * fixed retention limit fail closed rather than being silently discarded.
 */
export declare function parseSseChunk(chunk: string): {
    events: Array<unknown | "[DONE]">;
    remainder: string;
};
/**
 * Parse the final unterminated SSE block without making the synthetic frame
 * delimiter count against the caller-visible retention boundary.
 */
export declare function parseFinalSseChunk(chunk: string): {
    events: Array<unknown | "[DONE]">;
    remainder: string;
};
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