code: public Observable<Page<ComputePolicyInner>> listByAccountAsync(final String resourceGroupName, final String accountName) {
          return listByAccountWithServiceResponseAsync(resourceGroupName, accountName)
              .map(new Func1<ServiceResponse<Page<ComputePolicyInner>>, Page<ComputePolicyInner>>() {
                  @Override
                  public Page<ComputePolicyInner> call(ServiceResponse<Page<ComputePolicyInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Lists the Data Lake Analytics compute policies within the specified Data Lake Analytics account. An account supports, at most, 50 policies.
  
  @param resourceGroupName The name of the Azure resource group.
  @param accountName The name of the Data Lake Analytics account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;ComputePolicyInner&gt; object