docs: public static org.springframework.http.HttpHeaders createBasicAuthHeaders(final String basicAuthUser, final String basicAuthPassword) {
          val acceptHeaders = new org.springframework.http.HttpHeaders();
          acceptHeaders.setAccept(CollectionUtils.wrap(MediaType.APPLICATION_JSON));
          if (StringUtils.isNotBlank(basicAuthUser) && StringUtils.isNotBlank(basicAuthPassword)) {
              val authorization = basicAuthUser + ':' + basicAuthPassword;
              val basic = EncodingUtils.encodeBase64(authorization.getBytes(Charset.forName("US-ASCII")));
              acceptHeaders.set(org.springframework.http.HttpHeaders.AUTHORIZATION, "Basic " + basic);
          }
          return acceptHeaders;
      }