for _, p := range policiesToUpdate.ToSlice() {
			if _, found := cache.iamPolicyDocsMap[p]; !found {
				err = errNoSuchPolicy
				return
			}
		}
		newPolicySet = existingPolicySet.Union(policiesToUpdate)
	} else {
		// policies to detach => inputPolicies ∩ existing (intersection)
		policiesToUpdate = policiesToUpdate.Intersection(existingPolicySet)

interface {
	~[]byte  // the underlying type of []byte is itself
	~MyInt   // illegal: the underlying type of MyInt is not MyInt
	~error   // illegal: error is an interface
}
</pre>

<p>
Union elements denote unions of type sets:
</p>

<pre>
// The Float interface represents all floating-point types
// (including any named types whose underlying types are
// either float32 or float64).

* 空のファイル `__init__.py` を作成します
* `main.py` ファイルを作成します：

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

Agora, no mesmo diretório do projeto, crie um arquivo `Dockerfile` com:

```{ .dockerfile .annotate }
# (1)

res.aero
research.aero
rotorcraft.aero
safety.aero
scientist.aero
services.aero
show.aero
skydiving.aero
software.aero
student.aero
taxi.aero
trader.aero
trading.aero
trainer.aero
union.aero
workinggroup.aero
works.aero

// af : https://www.nic.af/domain-price
af
com.af
edu.af
gov.af
net.af
org.af

// ag : http://www.nic.ag/prices.htm
ag
com.ag
org.ag

ullensvang.no
ulsan.kr
ulvik.no
um.gov.pl
umaji.kochi.jp
umb.it
umbria.it
umi.fukuoka.jp
umig.gov.pl
unazuki.toyama.jp
under.jp
undo.jp
uni5.net
unicloud.pl
unicom
union.aero
unison-services.cloud
univ.bj
univ.sn
university
unjarga.no
unjárga.no
unnan.shimane.jp
uno
unusualperson.com
unzen.nagasaki.jp
uol
uonuma.niigata.jp

ullensvang.no
ulsan.kr
ulvik.no
um.gov.pl
umaji.kochi.jp
umb.it
umbria.it
umi.fukuoka.jp
umig.gov.pl
unazuki.toyama.jp
under.jp
undo.jp
uni5.net
unicloud.pl
unicom
union.aero
unison-services.cloud
univ.bj
univ.sn
university
unjarga.no
unjárga.no
unnan.shimane.jp
uno
unusualperson.com
unzen.nagasaki.jp
uol
uonuma.niigata.jp

* Add support for the webhook authorizer to make a Deny decision that short-circuits the union authorizer and immediately returns Deny.  ([#53273](https://github.com/kubernetes/kubernetes/pull/53273), [@mikedanese](https://github.com/mikedanese))

    for details of what operations are supported and what are the differences
    from NumPy.
*   `tf.types.experimental.TensorLike` is a new `Union` type that can be used as
    type annotation for variables representing a Tensor or a value that can be
    converted to Tensor by `tf.convert_to_tensor`.

collapses.\n.navbar-expand {\n  @each $breakpoint in map-keys($grid-breakpoints) {\n    $next: breakpoint-next($breakpoint, $grid-breakpoints);\n    $infix: breakpoint-infix($next, $grid-breakpoints);\n\n    // stylelint-disable-next-line scss/selector-no-union-class-name\n    &#{$infix} {\n      @include media-breakpoint-up($next) {\n        flex-wrap: nowrap;\n        justify-content: flex-start;\n\n        .navbar-nav {\n          flex-direction: row;\n\n          .dropdown-menu {\n            position:...