Package com.google.genai.proto

Model type. only have UNIGRAM now.

TrainerSpec encodes a various parameters for SentencePiece training.
Next id: 55

NormalizerSpec encodes a various parameters for string normalization

Proto to store samples for self-testing.

ModelProto stores model parameters.
SentencePieceProcessor is supposed to be self-contained.
All settings/parameters which may change the behavior must be encoded
in ModelProto.