code: public void setCategories(int i, String v) { 
      if (GOMention_Type.featOkTst && ((GOMention_Type)jcasType).casFeat_categories == null)
        jcasType.jcas.throwFeatMissing("categories", "de.julielab.jules.types.GOMention");
      jcasType.jcas.checkArrayBounds(jcasType.ll_cas.ll_getRefValue(addr, ((GOMention_Type)jcasType).casFeatCode_categories), i);
      jcasType.ll_cas.ll_setStringArrayValue(jcasType.ll_cas.ll_getRefValue(addr, ((GOMention_Type)jcasType).casFeatCode_categories), i, v);}
docs: indexed setter for categories - sets an indexed value - created for the shared task, here we add the group
  @generated
  @param i index in the array to set
  @param v value to set into the array