isHealthy method

@override Future<bool> isHealthy()

Health check

Implementation

@override
Future<bool> isHealthy() async {
  try {
    final command = await _getConnection();
    final result = await command.send_object(['PING']);
    return result == 'PONG';
  } catch (e) {
    _isConnected = false;
    return false;
  }
}