SerializableTester.reserializeAndAssert(Floats.stringConverter());
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?
    List<Float> none = Arrays.<Float>asList();
    assertThat(Floats.toArray(none)).isEqualTo(EMPTY);

    List<Float> one = Arrays.asList(1.0f);
    assertThat(Floats.toArray(one)).isEqualTo(ARRAY1);

    float[] array = {0.0f, 1.0f, 3.0f};

    SerializableTester.reserializeAndAssert(Ints.stringConverter());
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?
    List<Integer> none = Arrays.<Integer>asList();
    assertThat(Ints.toArray(none)).isEqualTo(EMPTY);

    List<Integer> one = Arrays.asList((int) 1);
    assertThat(Ints.toArray(one)).isEqualTo(ARRAY1);

    int[] array = {(int) 0, (int) 1, (int) 0xdeadbeef};

    SerializableTester.reserializeAndAssert(Floats.stringConverter());
  }

  public void testToArray() {
    // need explicit type parameter to avoid javac warning!?
    List<Float> none = Arrays.<Float>asList();
    assertThat(Floats.toArray(none)).isEqualTo(EMPTY);

    List<Float> one = Arrays.asList(1.0f);
    assertThat(Floats.toArray(one)).isEqualTo(ARRAY1);

    float[] array = {0.0f, 1.0f, 3.0f};

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

Ahora, en el mismo directorio del proyecto, crea un archivo `Dockerfile` con:

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

	newSignature := getSignature(signingKey, stringToSign)

	// Verify if signature match.
	if !compareSignatureV4(newSignature, signV4Values.Signature) {
		return ErrSignatureDoesNotMatch
	}

	// Return error none.
	return ErrNone

```

/// tip

Tham số thứ hai cho <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> là giá trị mặc định để trả về.

Nếu không được cung cấp, nó mặc định là `None`, ở đây chúng ta cung cấp `"World"` là giá trị mặc định để sử dụng.

///

Sau đó bạn có thể gọi chương trình Python:

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console

print(f"Hello {name} from Python")
```

/// tip

🥈 ❌ <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> 🔢 💲 📨.

🚥 🚫 🚚, ⚫️ `None` 🔢, 📥 👥 🚚 `"World"` 🔢 💲 ⚙️.

///

⤴️ 👆 💪 🤙 👈 🐍 📋:

<div class="termy">

```console
// Here we don't set the env var yet
$ python main.py

		ok = ok && !ellipses.HasEllipses(arg)
	}

	var setArgs [][]string

	v, err := env.GetInt(EnvErasureSetDriveCount, 0)
	if err != nil {
		return err
	}
	setDriveCount := uint64(v)

	// None of the args have ellipses use the old style.
	if ok {
		setArgs, err = GetAllSets(setDriveCount, args...)
		if err != nil {
			return err
		}
		ctxt.Layout = disksLayout{
			legacy: true,

		{mustNewSignedBadMD5Request(http.MethodPut, "http://127.0.0.1:9000/", 5, bytes.NewReader([]byte("hello")), t), ErrBadDigest},
		// When request is properly signed, error is none.
		{mustNewSignedRequest(http.MethodGet, "http://127.0.0.1:9000", 0, nil, t), ErrNone},
	}

	// Validates all testcases.
	for i, testCase := range testCases {

        return Constants.TRUE.equalsIgnoreCase(getSystemProperty("aad.use.ds", "true"));
    }

    default String getSsoType() {
        return getSystemProperty(Constants.SSO_TYPE_PROPERTY, Constants.NONE);
    }

    //
    // fess_*.properties
    //

    String getAuthenticationAdminRoles();

    default String[] getAuthenticationAdminRolesAsArray() {