public function findTags()
    {
        $tags = [];
        foreach ($this->getDefinitions() as $id => $definition) {
            $tags = array_merge(array_keys($definition->getTags()), $tags);
        }

        return array_unique($tags);
    }
public function findTags()
    {
        $tags = [];
        foreach ($this->getDefinitions() as $id => $definition) {
            $tags = array_merge(array_keys($definition->getTags()), $tags);
        }

        return array_unique($tags);
    }
public function findTags ( ) { $ tags = [ ] ; foreach ( $ this -> getDefinitions ( ) as $ id => $ definition ) { $ tags = array_merge ( array_keys ( $ definition -> getTags ( ) ) , $ tags ) ; } return array_unique ( $ tags ) ; }
Returns all tags the defined services use.

@return array An array of tags
Returns all tags the defined services use .