code: def from_proto(cls, repeated_split_infos):
      
      split_dict = cls()
      for split_info_proto in repeated_split_infos:
        split_info = SplitInfo()
        split_info.CopyFrom(split_info_proto)
        split_dict.add(split_info)
      return split_dict
docs: Returns a new SplitDict initialized from the `repeated_split_infos`.