return "Get alternative subgraph representation (if appliable) for all the "
           "given devices, will by default include the cpu implementation.";
  }
  AlternativeSubgraphPass() = default;
  AlternativeSubgraphPass(const AlternativeSubgraphPass&) {}
  explicit AlternativeSubgraphPass(llvm::ArrayRef<std::string> device_specs) {
    device_specs_flag_ = device_specs;
  }

 private:
  void runOnOperation() override;