code: public ServiceFuture<ResourceGroupInner> getAsync(String resourceGroupName, final ServiceCallback<ResourceGroupInner> serviceCallback) {
          return ServiceFuture.fromResponse(getWithServiceResponseAsync(resourceGroupName), serviceCallback);
      }
docs: Gets a resource group.
  
  @param resourceGroupName The name of the resource group to get. The name is case insensitive.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object