}

  /**
   * Returns a new range set consisting of the union of this range set and {@code other}.
   *
   * <p>This is essentially the same as {@code TreeRangeSet.create(this).addAll(other)} except it
   * returns an {@code ImmutableRangeSet}.
   *
   * @since 21.0
   */
  public ImmutableRangeSet<C> union(RangeSet<C> other) {
    return unionOf(Iterables.concat(asRanges(), other.asRanges()));
  }

  /**

            Range.openClosed(5, 7),
            Range.open(3, 4));
    subsets:
    for (Set<Range<Integer>> subset : Sets.powerSet(ranges)) {
      assertEquals(TreeRangeSet.create(subset), ImmutableRangeSet.unionOf(subset));

      RangeSet<Integer> mutable = TreeRangeSet.create();
      ImmutableRangeSet.Builder<Integer> builder = ImmutableRangeSet.builder();

      boolean anyOverlaps = false;

///

{* ../../docs_src/extra_models/tutorial003_py310.py hl[1,14:15,18:20,33] *}


### `Union` en Python 3.10

## `Union` ⚖️ `anyOf`

👆 💪 📣 📨 `Union` 2️⃣ 🆎, 👈 ⛓, 👈 📨 🔜 🙆 2️⃣.

⚫️ 🔜 🔬 🗄 ⏮️ `anyOf`.

👈, ⚙️ 🐩 🐍 🆎 🔑 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>:

/// note

///

{* ../../docs_src/extra_models/tutorial003_py310.py hl[1,14:15,18:20,33] *}


### `Union` in Python 3.10 { #union-in-python-3-10 }

///

{* ../../docs_src/extra_models/tutorial003.py hl[1,14:15,18:20,33] *}

### `Union` no Python 3.10

///

{* ../../docs_src/extra_models/tutorial003_py310.py hl[1,14:15,18:20,33] *}

### `Union` в Python 3.10

/// note | Hinweis

Y lo mismo que con Python 3.8, desde el módulo `typing`:

* `Union`
* `Optional` (lo mismo que con Python 3.8)
* ...y otros.

En Python 3.10, como alternativa a usar los genéricos `Union` y `Optional`, puedes usar la <abbr title='también llamado "operador OR a nivel de bits", pero ese significado no es relevante aquí'>barra vertical (`|`)</abbr> para declarar uniones de tipos, eso es mucho mejor y más simple.

////

```

////

#### Using `Union` or `Optional` { #using-union-or-optional }

If you are using a Python version below 3.10, here's a tip from my very **subjective** point of view:

* 🚨 Avoid using `Optional[SomeType]`
* Instead ✨ **use `Union[SomeType, None]`** ✨.