wp-includes/php-ai-client/src/Messages/DTO/Message.php:71Gets the message parts.
WordPress\AiClient\Messages\DTO\MessagePart[] public function getParts(): array { return $this->parts; }Introduced in 0.1.0. Unchanged from 7.0.4 through 7.1.0.
Signature, return type and hooks compared across 2 parsed releases.
src/wp-includes/php-ai-client/src/Messages/DTO/Message.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.