docs: protected final CnvBnRsToLong<RS>
      createPutCnvBnRsToLong() throws Exception {
      CnvBnRsToLong<RS> convrt = new CnvBnRsToLong<RS>();
      //assigning fully initialized object:
      this.convertersMap
        .put(CnvBnRsToLong.class.getSimpleName(), convrt);
      return convrt;
    }