wp-includes/php-ai-client/src/Messages/DTO/MessagePart.php:113Gets the channel this message part belongs to.
WordPress\AiClient\Messages\Enums\MessagePartChannelEnum public function getChannel(): MessagePartChannelEnum { return $this->channel; }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/MessagePart.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.