code: public Observable<CognitiveServicesAccountInner> createAsync(String resourceGroupName, String accountName, CognitiveServicesAccountCreateParameters parameters) {
          return createWithServiceResponseAsync(resourceGroupName, accountName, parameters).map(new Func1<ServiceResponse<CognitiveServicesAccountInner>, CognitiveServicesAccountInner>() {
              @Override
              public CognitiveServicesAccountInner call(ServiceResponse<CognitiveServicesAccountInner> response) {
                  return response.body();
              }
          });
      }
docs: Create Cognitive Services Account. Accounts is a resource group wide resource type. It holds the keys for developer to access intelligent APIs. It's also the resource type for billing.
  
  @param resourceGroupName The name of the resource group within the user's subscription.
  @param accountName The name of Cognitive Services account.
  @param parameters The parameters to provide for the created account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the CognitiveServicesAccountInner object