code: public UrlChain params(Object... paramsOnGet) {
          final String argTitle = "paramsOnGet";
          assertArgumentNotNull(argTitle, paramsOnGet);
          checkWrongUrlChainUse(argTitle, paramsOnGet);
          this.paramsOnGet = paramsOnGet;
          return this;
      }
docs: Set up parameters on GET as URL chain.
  @param paramsOnGet The varying array of parameters on GET. (NotNull)
  @return The created instance of URL chain. (NotNull)