wp-includes/php-ai-client/src/Builders/MessageBuilder.php:193Adds multiple message parts to the message.
$partsWordPress\AiClient\Messages\DTO\MessagePartself public function withMessageParts(MessagePart ...$parts): self { foreach ($parts as $part) { $this->parts[] = $part; } return $this; }Introduced in 0.2.0. 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/Builders/MessageBuilder.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.