@Override
 public void accept(final CommandVisitor v) {
   v.handleRoleSetDescriptionCommand(this);
 }
 @Override
 public void accept(final CommandVisitor v) {
   v.handleBugTicketTypeCreateCommand(this);
 }
 @Override
 public void accept(final CommandVisitor v) {
   v.handleSprintCreateCommand(this);
 }