The function automatically combines a list of [BenchmarkResult] objects into a single [BenchmarkResult] object as long as the full crossproduct of all task-learner combinations are available.
[list of [BenchmarkResult])
Note that if you want to merge several [BenchmarkResult] objects, you must ensure that all possible learner and task combinations will be contained in the returned object. Otherwise, the user will be notified which task-learner combinations are missing or duplicated. When merging [BenchmarkResult] objects with different measures, all missing measures will automatically be recomputed.