this.valueComparator = checkNotNull(valueComparator, "valueComparator");
      return this;
    }

    @CanIgnoreReturnValue
    Builder<K, V> combine(Builder<K, V> other) {
      checkNotNull(other);
      entries.addAll(other.entries);
      return this;
    }

    public ImmutableMap<K, V> build() {
      return buildOrThrow();
    }

    public Builder<K, V> orderValuesBy(Comparator<? super V> valueComparator) {
      this.valueComparator = checkNotNull(valueComparator);
      return this;
    }

    @CanIgnoreReturnValue
    Builder<K, V> combine(Builder<K, V> other) {
      for (Map.Entry<K, Collection<V>> entry : other.builderMap.entrySet()) {
        putAll(entry.getKey(), entry.getValue());
      }
      return this;
    }

When the `with` block finishes, it makes sure to close the file, even if there were exceptions.

When you create a dependency with `yield`, **FastAPI** will internally create a context manager for it, and combine it with some other related tools.

### Using context managers in dependencies with `yield`

!!! warning
    This is, more or less, an "advanced" idea.

    public Builder<E> addAll(Iterator<? extends E> elements) {
      super.addAll(elements);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    Builder<E> combine(ImmutableSet.Builder<E> builder) {
      super.combine(builder);
      return this;
    }

    /**
     * Returns a newly-created {@code ImmutableSortedSet} based on the contents of the {@code
     * Builder} and its comparator.

    public Builder<K, V> orderValuesBy(Comparator<? super V> valueComparator) {
      this.valueComparator = checkNotNull(valueComparator);
      return this;
    }

    @CanIgnoreReturnValue
    Builder<K, V> combine(Builder<K, V> other) {
      for (Map.Entry<K, Collection<V>> entry : other.builderMap.entrySet()) {
        putAll(entry.getKey(), entry.getValue());
      }
      return this;
    }

  # Find all Python py_test targets not tagged "no_pip" or "manual", excluding
  # any targets in ignored packages. Combine this list of targets into a bazel
  # query list (e.g. the list becomes "target+target2+target3")

	gwMsg, err := checkGatewayAPIs(cli)
	if err != nil {
		return nil, err
	}
	msgs = append(msgs, gwMsg...)

	// TODO: add more checks

	sa := local.NewSourceAnalyzer(
		analysis.Combine("upgrade precheck", &maturity.AlphaAnalyzer{}),
		resource.Namespace(ctx.Namespace()),
		resource.Namespace(ctx.IstioNamespace()),
		nil,
	)
	if err != nil {
		return nil, err
	}

	}
	fmt.Fprintf(w, tagCreatedStr, tagName, revision, tagName)
	return nil
}

func analyzeWebhook(name, istioNamespace, wh, revision string, config *rest.Config) error {
	sa := local.NewSourceAnalyzer(analysis.Combine("webhook", &webhook.Analyzer{}), "", resource.Namespace(istioNamespace), nil)
	if err := sa.AddReaderKubeSource([]local.ReaderSource{{Name: "", Reader: strings.NewReader(wh)}}); err != nil {
		return err
	}

    ImmutableSortedSet.Builder<String> zat =
        ImmutableSortedSet.<String>naturalOrder().add("a", "b", "d", "c");
    ImmutableSortedSet<String> sortedSet = zis.combine(zat).build();
    assertThat(sortedSet).containsExactly("a", "b", "c", "d").inOrder();
  }

  // TODO(b/172823566): Use mainline testToImmutableSortedSet_customComparator once CollectorTester
  //  is usable to java7.

        add(elements.next());
      }
      return this;
    }

    @CanIgnoreReturnValue
    @SuppressWarnings("unchecked") // ArrayBasedBuilder stores its elements as Object.
    Builder<E> combine(Builder<E> other) {
      if (hashTable != null) {
        for (int i = 0; i < other.size; ++i) {
          // requireNonNull is safe because the first `size` elements are non-null.