return patterns;
  }

  mlir::TypeID GetTypeId() const override {
    return mlir::TypeID::get<FooHardware>();
  }

  // We can specify what ops are not supported here.
  bool IsNotSupportedOp(mlir::Operation* op) const override { return false; }

  // This is basically saying how fast are we comparing to CPU.
  // The larger the value the better.
  float AdvantageOverCPU() const override { return 5.0; }
};