}

    /** WAVE DASH */
    public static final char WAVE_DASH = '\u301C';

    /** FULLWIDTH TILDE */
    public static final char FULLWIDTH_TILDE = '\uFF5E';

    /** DOUBLE VERTICAL LINE */
    public static final char DOUBLE_VERTICAL_LINE = '\u2016';

    /** PARALLEL TO */
    public static final char PARALLEL_TO = '\u2225';

    /** MINUS SIGN */

    checkArgument(xDelta != 0.0);
    checkArgument(yDelta != 0.0);
    assertThat(transformation.isHorizontal()).isFalse();
    assertThat(transformation.isVertical()).isFalse();
    assertThat(transformation.inverse().isHorizontal()).isFalse();
    assertThat(transformation.inverse().isVertical()).isFalse();
    assertThat(transformation.transform(x1)).isWithin(ALLOWED_ERROR).of(y1);

mirror=1)";-webkit-transform:scaleX(-1);transform:scaleX(-1)}.fa-flip-vertical{-webkit-transform:scaleY(-1);transform:scaleY(-1)}.fa-flip-both,.fa-flip-horizontal.fa-flip-vertical,.fa-flip-vertical{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2, mirror=1)"}.fa-flip-both,.fa-flip-horizontal.fa-flip-vertical{-webkit-transform:scale(-1);transform:scale(-1)}:root .fa-flip-both,:root .fa-flip-horizontal,:root .fa-flip-vertical,:root .fa-rotate-90,:root .fa-rotate-180,:root .fa-rotate-270...

Porque lo estamos pasando como un **valor a un argumento** en lugar de ponerlo en **anotaciones de tipos**, tenemos que usar `Union` incluso en Python 3.10.

Si estuviera en anotaciones de tipos podríamos haber usado la barra vertical, como:

```Python
some_variable: PlaneItem | CarItem
```

    //// tab | {tab title}
    {tab content, may span many lines}
    ////

Keep everything before the vertical bar («|») as is, including the vertical bar. Translate the tab title. Translate the tab content, applying the rules you know. Keep the four block closing slashes as is.

Examples:

    Source (English):

        «««

{\n  padding-right: 0.75rem;\n  padding-left: 0.75rem;\n}\n\n.btn-group-vertical {\n  flex-direction: column;\n  align-items: flex-start;\n  justify-content: center;\n}\n.btn-group-vertical > .btn,\n.btn-group-vertical > .btn-group {\n  width: 100%;\n}\n.btn-group-vertical > .btn:not(:first-child),\n.btn-group-vertical > .btn-group:not(:first-child) {\n  margin-top: calc(var(--bs-border-width) * -1);\n}\n.btn-group-vertical > .btn:not(:last-child):not(.dropdown-toggle),\n.btn-group-vertical > .b...

Dado que estamos passando-o como um **valor para um argumento** em vez de colocá-lo em uma **anotação de tipo**, precisamos usar `Union` mesmo no Python 3.10.

Se estivesse em uma anotação de tipo, poderíamos ter usado a barra vertical, como:

```Python
some_variable: PlaneItem | CarItem
```

FE15          ; disallowed_STD3_mapped ; 0021          # 4.1  PRESENTATION FORM FOR VERTICAL EXCLAMATION MARK
FE16          ; disallowed_STD3_mapped ; 003F          # 4.1  PRESENTATION FORM FOR VERTICAL QUESTION MARK
FE17          ; mapped                 ; 3016          # 4.1  PRESENTATION FORM FOR VERTICAL LEFT WHITE LENTICULAR BRACKET

In Python 3.10 there's also a **new syntax** where you can put the possible types separated by a <abbr title='also called "bitwise or operator", but that meaning is not relevant here'>vertical bar (`|`)</abbr>.

//// tab | Python 3.10+

```Python hl_lines="1"
{!> ../../docs_src/python_types/tutorial008b_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"

Because we are passing it as a **value to an argument** instead of putting it in a **type annotation**, we have to use `Union` even in Python 3.10.

If it was in a type annotation we could have used the vertical bar, as:

```Python
some_variable: PlaneItem | CarItem
```