Returns the text in parenthesis contained in this reply.
The meaning of this property depends on the command sent. Sometimes it contains a flag like "timeout" or "hangup" or - in case of the GetVariableCommand - the value of the variable.

public string Extra { get; }

Public ReadOnly Property Extra As String
	Get

public:
property String^ Extra {
	String^ get ();
}

member Extra : string with get