public void accept(@NotNull PsiElementVisitor visitor) {
   if (visitor instanceof ThriftVisitor) ((ThriftVisitor) visitor).visitNamespaceScope(this);
   else super.accept(visitor);
 }
 public void accept(@NotNull PsiElementVisitor visitor) {
   if (visitor instanceof ThriftVisitor) ((ThriftVisitor) visitor).visitSemunField(this);
   else super.accept(visitor);
 }