static <A, B> L<B> lambdaMapLike pnlMap(S prefix default "", IF1<A, B> f, Iterable<A> l) {
  ret pnlMap(prefix, l, f);
}

static <A, B> L<B> pnlMap(S prefix default "", Iterable<A> l, IF1<A, B> f) {
  ret pnl(prefix, map(l, f));
}