Chat::canExtendChat

public function canExtendChat(): bool
{
	if (!$this->chatFields)
	{
		return false;
	}
	if ($this->chatFields['message_type'] === IM_MESSAGE_PRIVATE)
	{
		return true;
	}
	$entityType = $this->chatFields['entity_type'];
	$options = CIMChat::GetChatOptions();
	return (bool)($options[$entityType]['EXTEND'] ?? true);
}