public void Visit(ITFtpCommandVisitor visitor) => visitor.OnReadRequest(this);
public void Visit(ITFtpCommandVisitor visitor) => visitor.OnOptionAcknowledgement(this);
public void Visit(ITFtpCommandVisitor visitor) { visitor.OnError(this); }
public void Visit(ITFtpCommandVisitor visitor) => visitor.OnData(this);
public void Visit(ITFtpCommandVisitor visitor) { visitor.OnAcknowledgement(this); }
public void Visit(ITFtpCommandVisitor visitor) { visitor.OnWriteRequest(this); }