def METHOD_NAME(self):
    """
    Return an `.SFTPAttributes` object referring to this open file, or an
    error code.  This is equivalent to `.SFTPServerInterface.stat`, except
    it's called on an open file instead of a path.
    :return:
        an attributes object for the given file, or an SFTP error code
        (like ``SFTP_PERMISSION_DENIED``).
    :rtype: `.SFTPAttributes` or error code
    """
    return SFTP_OP_UNSUPPORTED