stat method

Implementation

Future<SftpFileAttrs> stat() async {
  _mustNotBeClosed();
  final reply = await _client._sendFStat(_handle);
  if (reply is SftpAttrsPacket) return reply.attrs;
  if (reply is! SftpStatusPacket) throw SftpError('Unexpected reply');
  throw SftpStatusError.fromStatus(reply);
}