public DescribePlacementGroupsResult describePlacementGroups(DescribePlacementGroupsRequest request) {request = beforeClientExecution(request);return executeDescribePlacementGroups(request);}

public virtual DescribePlacementGroupsResponse DescribePlacementGroups(DescribePlacementGroupsRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribePlacementGroupsRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribePlacementGroupsResponseUnmarshaller.Instance;return Invoke<DescribePlacementGroupsResponse>(request, options);}
