code: public Observable<KeyListResultInner> listByAutomationAccountAsync(String resourceGroupName, String automationAccountName) {
          return listByAutomationAccountWithServiceResponseAsync(resourceGroupName, automationAccountName).map(new Func1<ServiceResponse<KeyListResultInner>, KeyListResultInner>() {
              @Override
              public KeyListResultInner call(ServiceResponse<KeyListResultInner> response) {
                  return response.body();
              }
          });
      }
docs: Retrieve the automation keys for an account.
  
  @param resourceGroupName Name of an Azure Resource group.
  @param automationAccountName The name of the automation account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the KeyListResultInner object