Title: ModelConfig::setFunctionDeclarations
Published: May 20, 2026

---

# ModelConfig::setFunctionDeclarations( WordPressAiClientProvidersModelsDTOlist $functionDeclarations )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#wp--skip-link--target)

Sets the function declarations.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#parameters)󠁿

 `$functionDeclarations`<span class="WordPressAiClientProvidersModelsDTOlist”>WordPressAiClientProvidersModelsDTOlistrequired

The function declarations.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#source)󠁿

    ```php
    public function setFunctionDeclarations(array $functionDeclarations): void
    {
        if (!array_is_list($functionDeclarations)) {
            throw new InvalidArgumentException('Function declarations must be a list array.');
        }
        $this->functionDeclarations = $functionDeclarations;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/providers/models/dto/modelconfig.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Providers/Models/DTO/ModelConfig.php#L474)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Providers/Models/DTO/ModelConfig.php#L474-L480)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/setfunctiondeclarations/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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