!759

p {
  new SmallestListMultiMap<S, S> mm;
  assertEquals(0, mm.size());
  mm.put("a", "bla");
  mm.put("a", "blubb");
  mm.put("b", "yes");
  printStruct(mm.asMap());
  assertEquals(ll("bla", "blubb"), mm.get("a"));
  assertEquals(ll("yes"), mm.get("b"));
  assertEquals(ll(), mm.get("c"));
  assertEquals(3, mm.size());
  mm.remove("a", "bla");
  assertEquals(2, mm.size());
  assertEquals(ll("blubb"), mm.get("a"));
  assertEquals("blubb", mm.getFirst("a"));
  print("OK");
}