original_string: public function resetFilters($extension = null)
      {
          if ($extension === null) {
              $this->filters = [];
          }
          else {
              $this->filters[$extension] = [];
          }
  
          return $this;
      }
code: public function resetFilters($extension = null)
      {
          if ($extension === null) {
              $this->filters = [];
          }
          else {
              $this->filters[$extension] = [];
          }
  
          return $this;
      }
code_tokens: public function resetFilters ( $ extension = null ) { if ( $ extension === null ) { $ this -> filters = [ ] ; } else { $ this -> filters [ $ extension ] = [ ] ; } return $ this ; }
docstring: Clears any registered filters.
  @param string $extension Extension name. Eg: css
  @return self
docstring_tokens: Clears any registered filters .