map.put("bar", 2);
    map.put("cow", 3);
    Multimap<String, Integer> multimap = Multimaps.forMap(map);
    assertEquals(3, multimap.size());
    assertEquals(Collections.emptySet(), multimap.removeAll("dog"));
    assertEquals(3, multimap.size());
    assertTrue(multimap.containsKey("bar"));
    assertEquals(Collections.singleton(2), multimap.removeAll("bar"));
    assertEquals(2, multimap.size());

    assertEquals(expected, actual);
  }

  private static final String EMPTY_STRING = "";
  private static final String TQBFJOTLD = "The quick brown fox jumps over the lazy dog";
  private static final String TQBFJOTLDP = "The quick brown fox jumps over the lazy dog.";

  private static final ImmutableTable<HashFunction, String, String> KNOWN_HASHES =
      ImmutableTable.<HashFunction, String, String>builder()

  Alice didn't think that proved it at all; however, she went on
`And how do you know that you're mad?'

  `To begin with,' said the Cat, `a dog's not mad.  You grant
that?'

  `I suppose so,' said Alice.

  `Well, then,' the Cat went on, `you see, a dog growls when it's
angry, and wags its tail when it's pleased.  Now I growl when I'm
pleased, and wag my tail when I'm angry.  Therefore I'm mad.'

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    map.put("bar", 2);
    map.put("cow", 3);
    Multimap<String, Integer> multimap = Multimaps.forMap(map);
    assertEquals(3, multimap.size());
    assertEquals(Collections.emptySet(), multimap.removeAll("dog"));
    assertEquals(3, multimap.size());
    assertTrue(multimap.containsKey("bar"));
    assertEquals(Collections.singleton(2), multimap.removeAll("bar"));
    assertEquals(2, multimap.size());