public void testRemove_empty() {
    assertThrows(NoSuchElementException.class, () -> getQueue().remove());
    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(ONE)
  public void testRemove_size1() {
    assertEquals("size1Queue.remove() should return first element", e0(), getQueue().remove());
    expectMissing(e0());
  }

  @CollectionFeature.Require({KNOWN_ORDER, SUPPORTS_REMOVE})

        }
        final String result = line;
        line = EMPTY;
        return result;
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemove_present() {
    getSet().remove(e0());
    assertFalse(
        "After remove(present) a set should not contain the removed element.",
        getSet().contains(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemove_present() {
    getSet().remove(e0());
    assertFalse(
        "After remove(present) a set should not contain the removed element.",
        getSet().contains(e0()));
  }

    Set<Feature<?>> derivedFeatures = copyToSet(multimapFeatures);
    if (!derivedFeatures.remove(CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS)) {
      derivedFeatures.remove(CollectionFeature.SERIALIZABLE);
    }
    if (derivedFeatures.remove(MapFeature.SUPPORTS_REMOVE)) {
      derivedFeatures.add(CollectionFeature.SUPPORTS_REMOVE);
    }
    return derivedFeatures;
  }

	// If not found, just return.
	if !found {
		return false
	}

	// Reserialize...
	x.serialize(plSize, keys, vals)
	return true
}

// remove will remove one or more keys.
// Returns true if any key was found.
func (x *xlMetaInlineData) remove(keys ...string) bool {
	in := x.afterVersion()
	sz, buf, _ := msgp.ReadMapHeaderBytes(in)
	newKeys := make([][]byte, 0, sz)
	newVals := make([][]byte, 0, sz)

        recurse(level + 1);
      }
    }
  }

  private void compareResultsForThisListOfStimuli() {
    int removes = frequency(asList(stimuli), remove);
    if ((!features.contains(IteratorFeature.SUPPORTS_REMOVE) && removes > 1)
        || (stimuli.length >= 5 && removes > 2)) {
      // removes are the most expensive thing to test, since they often throw exceptions with stack
      // traces, so we test them a bit less aggressively

    }

    /**
     * @throws Exception
     */
    @Test
    public void testRemove() throws Exception {
        assertThat(map.remove("1"), is("test"));
        assertThat(map.size(), is(2));
        assertThat(map.remove("dummy"), is(nullValue()));
        assertThat(map.remove(0), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testRemove2() throws Exception {

    @Override
    public boolean remove(@Nullable Object key, @Nullable Object value) {
      return map.entrySet().remove(Maps.immutableEntry(key, value));
    }

    @Override
    public Set<V> removeAll(@Nullable Object key) {
      Set<V> values = new HashSet<>(2);
      if (!map.containsKey(key)) {
        return values;
      }
      values.add(map.remove(key));
      return values;
    }

    @Override
    public boolean remove(@Nullable Object key, @Nullable Object value) {
      return map.entrySet().remove(Maps.immutableEntry(key, value));
    }

    @Override
    public Set<V> removeAll(@Nullable Object key) {
      Set<V> values = new HashSet<>(2);
      if (!map.containsKey(key)) {
        return values;
      }
      values.add(map.remove(key));
      return values;
    }