/**
  * Define (add) particular steps this activity can have
  */
 protected function define_my_steps()
 {
     geogebra_normalize_date();
     $this->add_step(new backup_geogebra_activity_structure_step('geogebra_structure', 'geogebra.xml'));
 }
 /**
  * Define (add) particular steps this activity can have
  */
 protected function define_my_steps()
 {
     geogebra_normalize_date();
     // GeoGebra only has one structure step
     $this->add_step(new restore_geogebra_activity_structure_step('geogebra_structure', 'geogebra.xml'));
 }