code: public void setRefid(String v) {
      if (EventArgument_Type.featOkTst && ((EventArgument_Type)jcasType).casFeat_refid == null)
        jcasType.jcas.throwFeatMissing("refid", "de.julielab.jules.types.ace.EventArgument");
      jcasType.ll_cas.ll_setStringValue(addr, ((EventArgument_Type)jcasType).casFeatCode_refid, v);}
docs: setter for refid - sets
  @generated
  @param v value to set into the feature