public void testAdd_supportedNotPresent() {
    assertTrue("add(notPresent) should return true", collection.add(e3()));
    expectAdded(e3());
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  public void testAdd_unsupportedNotPresent() {
    assertThrows(UnsupportedOperationException.class, () -> collection.add(e3()));
    expectUnchanged();
    expectMissing(e3());
  }

    }

    default void add(BuilderProblem.Severity severity, ModelProblem.Version version, String message) {
        add(severity, version, message, null, null);
    }

    default void add(
            BuilderProblem.Severity severity, ModelProblem.Version version, String message, InputLocation location) {
        add(severity, version, message, location, null);
    }

    default void add(

                cbLambda.callback(cb);
                final ListResultBean<WebConfig> list = new ListResultBean<>();
                list.add((WebConfig) crawlingConfigHelper.getCrawlingConfig("W1"));
                list.add((WebConfig) crawlingConfigHelper.getCrawlingConfig("W2"));
                list.add((WebConfig) crawlingConfigHelper.getCrawlingConfig("W3"));
                return list;
            }

    add(primToWrap, wrapToPrim, boolean.class, Boolean.class);
    add(primToWrap, wrapToPrim, byte.class, Byte.class);
    add(primToWrap, wrapToPrim, char.class, Character.class);
    add(primToWrap, wrapToPrim, double.class, Double.class);
    add(primToWrap, wrapToPrim, float.class, Float.class);
    add(primToWrap, wrapToPrim, int.class, Integer.class);
    add(primToWrap, wrapToPrim, long.class, Long.class);

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

## Add `.gitignore` { #add-gitignore }

If you are using **Git** (you should), add a `.gitignore` file to exclude everything in your `.venv` from Git.

/// tip

        List<ColumnInfo> ls = newArrayList();
        ls.add(columnEndTime());
        ls.add(columnJobName());
        ls.add(columnJobStatus());
        ls.add(columnLastUpdated());
        ls.add(columnScriptData());
        ls.add(columnScriptResult());
        ls.add(columnScriptType());
        ls.add(columnStartTime());
        ls.add(columnTarget());
        return ls;
    }

    Multiset<String> multiset = HashMultiset.create();
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
  }

  public void testCreateWithSize() {
    Multiset<String> multiset = HashMultiset.create(50);
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));

        // Setup multiple script engines
        TestScriptEngine engine1 = new TestScriptEngine("engine1");
        TestScriptEngine engine2 = new TestScriptEngine("engine2");
        scriptEngineFactory.add("type1", engine1);
        scriptEngineFactory.add("type2", engine2);

        // Execute with first engine
        Object result1 = scriptExecutor.execute("type1", "script for engine1");

     */
    public void setSeacher(final RankFusionSearcher searcher) {
        searchers[0] = searcher;
    }

    /**
     * Registers a new searcher with the rank fusion processor.
     * Adds the searcher to the searchers array and initializes the executor service
     * if it hasn't been created yet. The executor service is created with a thread pool
     * sized based on configuration or system capabilities.
     *

  @CollectionSize.Require(absent = ZERO)
  public void testAdd_supportedPresent() {
    assertTrue("add(present) should return true", getList().add(e0()));
    expectAdded(e0());
  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  @CollectionSize.Require(absent = ZERO)
  /*
   * absent = ZERO isn't required, since unmodList.add() must
   * throw regardless, but it keeps the method name accurate.
   */