code: public java.util.List<String> getPatchGroups() {
          if (patchGroups == null) {
              patchGroups = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return patchGroups;
      }
docs: <p>
  Patch groups included in the patch baseline.
  </p>
  
  @return Patch groups included in the patch baseline.