Read a sharded DatasetFeatureStatisticsList from disk as a DatasetListView.

input_path_prefix If passed, loads files starting with this prefix and ending with a pattern corresponding to the output of the provided io_provider.
input_paths A list of file paths of files containing sharded DatasetFeatureStatisticsList protos.
io_provider Optional StatisticsIOProvider. If unset, a default will be constructed.

A DatasetListView containing the merged proto.