code: public void setRole(String v) {
      if (ArgumentMention_Type.featOkTst && ((ArgumentMention_Type)jcasType).casFeat_role == null)
        jcasType.jcas.throwFeatMissing("role", "de.julielab.jules.types.ArgumentMention");
      jcasType.ll_cas.ll_setStringValue(addr, ((ArgumentMention_Type)jcasType).casFeatCode_role, v);}
docs: setter for role - sets the role of the argument
  @generated
  @param v value to set into the feature