void WaitForProgramsToFinish() override;

  xla::PjRtClient* client() const override { return client_; }

 private:
  xla::PjRtClient* const client_;

  PjRtDeviceCompilerClient(const PjRtDeviceCompilerClient&) = delete;
  void operator=(const PjRtDeviceCompilerClient&) = delete;
};

// Generates CompileOptions for PJRT compilation.
xla::CompileOptions GetPjRtCompileOptions(
    const XlaCompiler::Options& options,

  return std::move(executable);
}

absl::StatusOr<std::string> PjRtDeviceCompilerClient::SerializeExecutable(
    const xla::PjRtLoadedExecutable& executable) {
  VLOG(1) << "Serializing xla::PjRtLoadedExecutable to string.";
  return executable.SerializeExecutable();
}

absl::StatusOr<std::string> PjRtDeviceCompilerClient::BuildSerializedExecutable(
    const XlaCompiler::Options& options,