fun nullRemovesTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag("a")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  fun nullRemovesTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag("a" as Any)
        .tag(null)
        .build()
    assertThat(request.tag<Any>()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag<String>()).isNull()

	//
	var t0 = new(fiat.P256Element)

	z.Square(x)
	z.Mul(x, z)
	t0.Square(z)
	for s := 1; s < 2; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)
	t0.Square(z)
	for s := 1; s < 4; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)
	t0.Square(z)
	for s := 1; s < 8; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)
	t0.Square(z)
	for s := 1; s < 16; s++ {
		t0.Square(t0)
	}
	z.Mul(z, t0)

        def versions = [
                rejectedByAttributes('1.1', [color: ['red', 'red', true], shape: ['square', 'circle', false]]),
                rejectedByAttributes('1.0', [color: ['red', 'green', false], shape: ['square', 'circle', false]]),
        ]

	}

	return p, nil
}

// p521Sqrt sets e to a square root of x. If x is not a square, p521Sqrt returns
// false and e is unchanged. e and x can overlap.
func p521Sqrt(e, x *fiat.P521Element) (isSquare bool) {
	candidate := new(fiat.P521Element)
	p521SqrtCandidate(candidate, x)
	square := new(fiat.P521Element).Square(candidate)
	if square.Equal(x) != 1 {
		return false
	}
	e.Set(candidate)
	return true

	}

	return p, nil
}

// {{.p}}Sqrt sets e to a square root of x. If x is not a square, {{.p}}Sqrt returns
// false and e is unchanged. e and x can overlap.
func {{.p}}Sqrt(e, x *{{ .Element }}) (isSquare bool) {
	candidate := new({{ .Element }})
	{{.p}}SqrtCandidate(candidate, x)
	square := new({{ .Element }}).Square(candidate)
	if square.Equal(x) != 1 {
		return false
	}
	e.Set(candidate)
	return true

    y: float


@app.post("/model-with-tuple/")
def post_model_with_tuple(item_group: ItemGroup):
    return item_group


@app.post("/tuple-of-models/")
def post_tuple_of_models(square: Tuple[Coordinate, Coordinate]):
    return square


@app.post("/tuple-form/")
def hello(values: Tuple[int, int] = Form()):
    return values


client = TestClient(app)


def test_model_with_tuple_valid():

      }
    ```

 [CustomTrustJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/CustomTrust.java
 [CustomTrustKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/CustomTrust.kt
 [CertificatePinningJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/CertificatePinning.java

	}

	return p, nil
}

// p224Sqrt sets e to a square root of x. If x is not a square, p224Sqrt returns
// false and e is unchanged. e and x can overlap.
func p224Sqrt(e, x *fiat.P224Element) (isSquare bool) {
	candidate := new(fiat.P224Element)
	p224SqrtCandidate(candidate, x)
	square := new(fiat.P224Element).Square(candidate)
	if square.Equal(x) != 1 {
		return false
	}
	e.Set(candidate)
	return true

	return v
}

// Doubling.

func (v *projP1xP1) Double(p *projP2) *projP1xP1 {
	var XX, YY, ZZ2, XplusYsq field.Element

	XX.Square(&p.X)
	YY.Square(&p.Y)
	ZZ2.Square(&p.Z)
	ZZ2.Add(&ZZ2, &ZZ2)
	XplusYsq.Add(&p.X, &p.Y)
	XplusYsq.Square(&XplusYsq)

	v.Y.Add(&YY, &XX)
	v.Z.Subtract(&YY, &XX)

	v.X.Subtract(&XplusYsq, &v.Y)
	v.T.Subtract(&ZZ2, &v.Z)
	return v
}