code: public EList<MPGRG> getRG() {
  		if (rg == null) {
  			rg = new EObjectContainmentEList.Resolving<MPGRG>(MPGRG.class, this, AfplibPackage.MPG__RG);
  		}
  		return rg;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated