}
      return converter_.isLegal(op);
    });
  }

 private:
  TFQuantTypeConverter &converter_;
};

class TFQuantTypePattern : public ConversionPattern {
 public:
  TFQuantTypePattern(MLIRContext *ctx, TypeConverter &converter)
      : ConversionPattern(converter, MatchAnyOpTypeTag(), 1, ctx) {}

  LogicalResult matchAndRewrite(