docs: private void post(final String endpoint, final HttpContent body, final Class responseClass, final KickflipCallback cb) {
          acquireAccessToken(new OAuthCallback() {
              @Override
              public void onSuccess(HttpRequestFactory requestFactory) {
                  request(requestFactory, METHOD.POST, makeApiUrl(endpoint), body, responseClass, cb);
              }
  
              @Override
              public void onFailure(Exception e) {
                  postExceptionToCallback(cb, UNKNOWN_ERROR_CODE);
              }
          });
      }