wp-includes/php-ai-client/src/Messages/DTO/Message.php:126WordPress\AiClient\Messages\DTO\MessageArrayShape public function toArray(): array { return [self::KEY_ROLE => $this->role->value, self::KEY_PARTS => array_map(function (\WordPress\AiClient\Messages\DTO\MessagePart $part) { return $part->toArray(); }, $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.