public ListRecommendationSummariesRequest withFilter(Filter filter) {
        setFilter(filter);
        return this;
    }
@param filter
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-costoptimizationhub/src/main/java/com/amazonaws/services/costoptimizationhub/model/ListRecommendationSummariesRequest.java