static <A> Collection<A> printStructLinesIndent(Collection<A> l) {
  ret pnlStructIndent(l);
}



static <A> A[] printStructLinesIndent(A[] l) {
  ret pnlStructIndent(l);
}



static <A, B> Map<A, B> printStructLinesIndent(Map<A, B> map) {
  ret pnlStructIndent(map);
}