code: public Observable<ServiceResponse<Page<IntegrationAccountCertificateInner>>> listByIntegrationAccountsWithServiceResponseAsync(final String resourceGroupName, final String integrationAccountName, final Integer top) {
          return listByIntegrationAccountsSinglePageAsync(resourceGroupName, integrationAccountName, top)
              .concatMap(new Func1<ServiceResponse<Page<IntegrationAccountCertificateInner>>, Observable<ServiceResponse<Page<IntegrationAccountCertificateInner>>>>() {
                  @Override
                  public Observable<ServiceResponse<Page<IntegrationAccountCertificateInner>>> call(ServiceResponse<Page<IntegrationAccountCertificateInner>> page) {
                      String nextPageLink = page.body().nextPageLink();
                      if (nextPageLink == null) {
                          return Observable.just(page);
                      }
                      return Observable.just(page).concatWith(listByIntegrationAccountsNextWithServiceResponseAsync(nextPageLink));
                  }
              });
      }
docs: Gets a list of integration account certificates.
  
  @param resourceGroupName The resource group name.
  @param integrationAccountName The integration account name.
  @param top The number of items to be included in the result.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;IntegrationAccountCertificateInner&gt; object