+ /** Tells the user they did not specify enough parameters.
+ * @param user The user who issued the command.
+ * @param parameters The parameters for the command.
+ */
+ virtual void TellNotEnoughParameters(LocalUser* user, const Params& parameters);
+
+ /** Tells the user they need to be registered to execute this command.
+ * @param user The user who issued the command.
+ * @param parameters The parameters for the command.