code: public Observable<RestorePointInner> getAsync(String resourceGroupName, String serverName, String databaseName, String restorePointName) {
          return getWithServiceResponseAsync(resourceGroupName, serverName, databaseName, restorePointName).map(new Func1<ServiceResponse<RestorePointInner>, RestorePointInner>() {
              @Override
              public RestorePointInner call(ServiceResponse<RestorePointInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets a restore point.
  
  @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 serverName The name of the server.
  @param databaseName The name of the database.
  @param restorePointName The name of the restore point.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the RestorePointInner object