original_string: protected function prepare_per_region_arrays() {
          $result = array();
          foreach ($this->regions as $region => $notused) {
              $result[$region] = array();
          }
          return $result;
      }
code: protected function prepare_per_region_arrays() {
          $result = array();
          foreach ($this->regions as $region => $notused) {
              $result[$region] = array();
          }
          return $result;
      }
code_tokens: protected function prepare_per_region_arrays ( ) { $ result = array ( ) ; foreach ( $ this -> regions as $ region => $ notused ) { $ result [ $ region ] = array ( ) ; } return $ result ; }
docstring: Returns an array of region names as keys and nested arrays for values
  
  @return array an array where the array keys are the region names, and the array
  values are empty arrays.
docstring_tokens: Returns an array of region names as keys and nested arrays for values