ReminderItem::createFromMessage

static function createFromMessage(Message $message, ?Context $context = null): self
{
	$reminder = new static();
	$reminder->setContext($context);

	$reminder
		->setEntity($message)
		->setAuthorId($reminder->getContext()->getUserId())
		->setChatId($message->getChatId())
	;

	return $reminder;
}