code: public function keyAdded(string $key, GroupData $groupData, array $args = null) {
  		$this->dbtextDao->insertKey($groupData->getNamespace(), $key, $args);
  		$this->clearCache($groupData->getNamespace());
  	}
docs: Adds a {@see Text} to {@see Group} then clears cache for {@see Group::$groupdata::namespace}.
  
  @param string $key
  @param GroupData $groupData