code: public Observable<SpatialAnchorsAccountInner> getByResourceGroupAsync(String resourceGroupName, String spatialAnchorsAccountName) {
          return getByResourceGroupWithServiceResponseAsync(resourceGroupName, spatialAnchorsAccountName).map(new Func1<ServiceResponse<SpatialAnchorsAccountInner>, SpatialAnchorsAccountInner>() {
              @Override
              public SpatialAnchorsAccountInner call(ServiceResponse<SpatialAnchorsAccountInner> response) {
                  return response.body();
              }
          });
      }
docs: Retrieve a Spatial Anchors Account.
  
  @param resourceGroupName Name of an Azure resource group.
  @param spatialAnchorsAccountName Name of an Mixed Reality Spatial Anchors Account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the SpatialAnchorsAccountInner object