/**
 * Utility for splitting streaming data into line-based chunks.
 * Buffers incomplete lines between chunks and handles newline characters correctly.
 * Useful for processing server-sent events or other line-based streaming protocols.
 */
export declare class LineDecoder {
    private lineBuffer;
    private decoder;
    private encoder;
    /**
     * Splits the given chunk into lines.
     * Stores incomplete lines in a buffer and returns them when the next chunk arrives.
     *
     * @param chunk - The data chunk to split into lines
     * @returns An array of complete lines as Uint8Array
     */
    splitLines(chunk: Uint8Array): Uint8Array[];
    /**
     * Returns the remaining lines in the buffer.
     * Call this after the stream ends to get any incomplete final line.
     *
     * @returns An array containing the buffered line, or empty if buffer is empty
     */
    flush(): Uint8Array[];
}
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