code: private boolean isPresent(CobolOptionalType optionalType) {
          if (optionalType.getDependingOn() != null) {
              return getOdoValue(optionalType.getDependingOn()) > 0;
          }
          return true;
      }
docs: Check if an optional type is present.
  
  @param optionalType the optional type
  @return true if the optional type is present