code: public Observable<DataLakeStoreAccountInner> createAsync(String resourceGroupName, String accountName, CreateDataLakeStoreAccountParameters parameters) {
          return createWithServiceResponseAsync(resourceGroupName, accountName, parameters).map(new Func1<ServiceResponse<DataLakeStoreAccountInner>, DataLakeStoreAccountInner>() {
              @Override
              public DataLakeStoreAccountInner call(ServiceResponse<DataLakeStoreAccountInner> response) {
                  return response.body();
              }
          });
      }
docs: Creates 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.
  @param parameters Parameters supplied to create the Data Lake Store account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request