code: public ServiceFuture<InstanceFailoverGroupInner> forceFailoverAllowDataLossAsync(String resourceGroupName, String locationName, String failoverGroupName, final ServiceCallback<InstanceFailoverGroupInner> serviceCallback) {
          return ServiceFuture.fromResponse(forceFailoverAllowDataLossWithServiceResponseAsync(resourceGroupName, locationName, failoverGroupName), serviceCallback);
      }
docs: Fails over from the current primary managed instance to this managed instance. This operation might result in data loss.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param locationName The name of the region where the resource is located.
  @param failoverGroupName The name of the failover group.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object