code: public Observable<Page<TrustedIdProviderInner>> listByAccountAsync(final String resourceGroupName, final String accountName) {
          return listByAccountWithServiceResponseAsync(resourceGroupName, accountName)
              .map(new Func1<ServiceResponse<Page<TrustedIdProviderInner>>, Page<TrustedIdProviderInner>>() {
                  @Override
                  public Page<TrustedIdProviderInner> call(ServiceResponse<Page<TrustedIdProviderInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Lists the Data Lake Store trusted identity providers within the specified Data Lake Store account.
  
  @param resourceGroupName The name of the Azure resource group.
  @param accountName The name of the Data Lake Store account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;TrustedIdProviderInner&gt; object