text: #pragma once
  
  #include <taskflow/taskflow.hpp>
  #include "service.grpc.pb.h"
  
  
  class ServiceImpl final : public StrategyService::Service {
   public:
    ServiceImpl();
  
    ::grpc::Status Rank(::grpc::ServerContext *context, const ::StrategyRequest *request,
                        ::StrategyResponse *response) override;
  
   private:
    tf::Executor executor_{10};
  };
  
  