original_string: public function getChainFor($fqcn)
      {
          if (!isset($this->chains[$fqcn])) {
              $this->chains[$fqcn] = new FilterChain();
          }
  
          return $this->chains[$fqcn];
      }
code: public function getChainFor($fqcn)
      {
          if (!isset($this->chains[$fqcn])) {
              $this->chains[$fqcn] = new FilterChain();
          }
  
          return $this->chains[$fqcn];
      }
code_tokens: public function getChainFor ( $ fqcn ) { if ( ! isset ( $ this -> chains [ $ fqcn ] ) ) { $ this -> chains [ $ fqcn ] = new FilterChain ( ) ; } return $ this -> chains [ $ fqcn ] ; }
docstring: Retrieves the filters for a class with a given FQCN.
  
  @param string $fqcn
  
  @return FilterChain
docstring_tokens: Retrieves the filters for a class with a given FQCN .