#import <Streams/WritableStream.idl>

[Exposed=*]
interface WritableStreamDefaultWriter {
    constructor(WritableStream stream);

    readonly attribute Promise<undefined> closed;
    readonly attribute unrestricted double? desiredSize;
    readonly attribute Promise<undefined> ready;

    // FIXME:
    // Promise<undefined> abort(optional any reason);
    // Promise<undefined> close();
    // undefined releaseLock();
    // Promise<undefined> write(optional any chunk);
};