/**
 * TextEncoderStream encodes a stream of strings into UTF-8 encoded bytes.
 *
 * Handles surrogate pairs split across chunks: if the last code unit of a
 * chunk is a high surrogate (0xD800–0xDBFF), it is held until the next chunk.
 * If the stream ends with a pending high surrogate, U+FFFD replacement bytes
 * are emitted.
 */
export declare class TextEncoderStream {
    #private;
    constructor();
    get encoding(): string;
    get readable(): ReadableStream<Uint8Array>;
    get writable(): WritableStream<string>;
}