code: public WritableByteChannel create(URI path) throws IOException {
      logger.atFine().log("create(%s)", path);
      return create(path, CreateFileOptions.DEFAULT);
    }
docs: Creates and opens an object for writing.
  If the object already exists, it is deleted.
  
  @param path Object full path of the form gs://bucket/object-path.
  @return A channel for writing to the given object.
  @throws IOException