original_string: public function setup_structure() {
          $this->structure = new grade_structure();
          $this->structure->modinfo = get_fast_modinfo($this->course);
      }
code: public function setup_structure() {
          $this->structure = new grade_structure();
          $this->structure->modinfo = get_fast_modinfo($this->course);
      }
code_tokens: public function setup_structure ( ) { $ this -> structure = new grade_structure ( ) ; $ this -> structure -> modinfo = get_fast_modinfo ( $ this -> course ) ; }
docstring: Cache the grade_structure class
docstring_tokens: Cache the grade_structure class