original_string: public function findTags()
      {
          $tags = [];
          foreach ($this->getDefinitions() as $id => $definition) {
              $tags = array_merge(array_keys($definition->getTags()), $tags);
          }
  
          return array_unique($tags);
      }
code: public function findTags()
      {
          $tags = [];
          foreach ($this->getDefinitions() as $id => $definition) {
              $tags = array_merge(array_keys($definition->getTags()), $tags);
          }
  
          return array_unique($tags);
      }
code_tokens: public function findTags ( ) { $ tags = [ ] ; foreach ( $ this -> getDefinitions ( ) as $ id => $ definition ) { $ tags = array_merge ( array_keys ( $ definition -> getTags ( ) ) , $ tags ) ; } return array_unique ( $ tags ) ; }
docstring: Returns all tags the defined services use.
  
  @return array An array of tags
docstring_tokens: Returns all tags the defined services use .