code: public java.util.List<PatchRule> getPatchRules() {
          if (patchRules == null) {
              patchRules = new com.amazonaws.internal.SdkInternalList<PatchRule>();
          }
          return patchRules;
      }
docs: <p>
  The rules that make up the rule group.
  </p>
  
  @return The rules that make up the rule group.