<img src="/img/tutorial/extending-openapi/image03.png">

## Change the Theme { #change-the-theme }

The same way you could set the syntax highlighting theme with the key `"syntaxHighlight.theme"` (notice that it has a dot in the middle):

{* ../../docs_src/configure_swagger_ui/tutorial002_py310.py hl[3] *}

That configuration would change the syntax highlighting color theme:

<img src="/img/tutorial/extending-openapi/image04.png">

Using this same trick, you could use a Pydantic model to define the JSON Schema that is then included in the custom OpenAPI schema section for the *path operation*.

And you could do this even if the data type in the request is not JSON.

Nous validons ensuite ces données avec le modèle Pydantic (en capturant l’exception `ValidationError`), et si nous obtenons une erreur lors de la lecture du jeton JWT ou de la validation des données avec Pydantic, nous levons la `HTTPException` que nous avons créée auparavant.

Pour cela, nous mettons à jour le modèle Pydantic `TokenData` avec une nouvelle propriété `scopes`.

func isIdentRune(ch rune, i int) bool {
	if unicode.IsLetter(ch) {
		return true
	}
	switch ch {
	case '_': // Underscore; traditional.
		return true
	case '\u00B7': // Represents the period in runtime.exit. U+00B7 '·' middle dot
		return true
	case '\u2215': // Represents the slash in runtime/debug.setGCPercent. U+2215 '∕' division slash
		return true
	}
	// Digits are OK only after the first character.
	return i > 0 && unicode.IsDigit(ch)

        <artifactId>modello-maven-plugin</artifactId>
        <configuration>
          <version>1.2.0</version>
          <models>
            <model>../../api/maven-api-cli/src/main/mdo/core-extensions.mdo</model>
          </models>
          <templates>
            <template>reader-stax.vm</template>
            <template>writer-stax.vm</template>
          </templates>
          <params>

      return Maps.transformValues(
          fromTable.columnMap(), column -> Maps.transformValues(column, function));
    }
  }

  /**
   * Returns an unmodifiable view of the specified table. This method allows modules to provide
   * users with "read-only" access to internal tables. Query operations on the returned table "read
   * through" to the specified table, and attempts to modify the returned table, whether direct or

Vamos imaginar que o carregamento do modelo pode **demorar bastante tempo**, porque ele precisa ler muitos **dados do disco**. Então você não quer fazer isso a cada requisição.

Dann verwenden wir den Request direkt und extrahieren den Body als `bytes`. Das bedeutet, dass FastAPI nicht einmal versucht, die Request-Payload als JSON zu parsen.

Und dann parsen wir in unserem Code diesen YAML-Inhalt direkt und verwenden dann wieder dasselbe Pydantic-Modell, um den YAML-Inhalt zu validieren:

     * a model source such as a string or input stream.
     *
     * @return an optional containing the source of the project, or empty if not specified
     */
    @Nonnull
    Optional<Source> getSource();

    /**
     * Determines whether a stub model should be allowed when the POM is missing or unreadable.

        int result = response.readParametersWireFormat(buffer, 0, 3);

        // Assert
        assertEquals(6, result);
    }

    @Test
    @DisplayName("Test readParametersWireFormat ignores middle 2 bytes")
    void testReadParametersWireFormatIgnoresMiddleBytes() {
        // Arrange
        byte[] buffer = new byte[10];
        SMBUtil.writeInt2(200, buffer, 0);
        // These bytes should be ignored