code: public java.util.List<String> getSupportedEngineModes() {
          if (supportedEngineModes == null) {
              supportedEngineModes = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return supportedEngineModes;
      }
docs: <p>
  A list of the supported DB engine modes.
  </p>
  
  @return A list of the supported DB engine modes.