original_string: public function get_units() {
          if (is_null($this->_units)) {
              $this->_units = array(
                  604800 => get_string('weeks'),
                  86400 => get_string('days'),
                  3600 => get_string('hours'),
                  60 => get_string('minutes'),
                  1 => get_string('seconds'),
              );
          }
          return $this->_units;
      }
code: public function get_units() {
          if (is_null($this->_units)) {
              $this->_units = array(
                  604800 => get_string('weeks'),
                  86400 => get_string('days'),
                  3600 => get_string('hours'),
                  60 => get_string('minutes'),
                  1 => get_string('seconds'),
              );
          }
          return $this->_units;
      }
code_tokens: public function get_units ( ) { if ( is_null ( $ this -> _units ) ) { $ this -> _units = array ( 604800 => get_string ( 'weeks' ) , 86400 => get_string ( 'days' ) , 3600 => get_string ( 'hours' ) , 60 => get_string ( 'minutes' ) , 1 => get_string ( 'seconds' ) , ) ; } return $ this -> _units ; }
docstring: Returns time associative array of unit length.
  
  @return array unit length in seconds => string unit name.
docstring_tokens: Returns time associative array of unit length .