code: private boolean isIncluded(String _fqcn) {
          if (includePackageNames.contains(_fqcn)) {
              return true;
          }
  
          String packageName = _fqcn.substring(0, _fqcn.lastIndexOf('.') + 1);
          for (String str : includePackageNames) {
              if (packageName.startsWith(str)) {
                  return true;
              }
          }
  
          return false;
      }
docs: Check if a certain class is included.
  @param _fqcn
  @return