Function combiner

tensorflow/lite/schema/schema_generated.h:5169–5171

    VT_COMBINER = 4
  };
  CombinerType combiner() const {
    return static_cast<CombinerType>(GetField<int8_t>(VT_COMBINER, 0));
  }
  bool Verify(flatbuffers::Verifier &verifier) const {
    return VerifyTableStart(verifier) &&
           VerifyField<int8_t>(verifier, VT_COMBINER) &&