let extraClassDeclaration = [{
    // AffineQuantizedOpInterface:
    int GetChannelDimIndex() { return 0; }
    int GetQuantizationDimIndex() { return 0; }
    // SparseOpInterface:
    std::vector<int> GetSparseOperands() { return {1}; }
    std::vector<std::vector<int>> GetFloatBlockSize() { return {}; }
    std::vector<std::vector<int>> GetQuantizedBlockSize() { return {}; }
    // DynamicRangeQuantizedOpInterface: