#include <eosio/eosio.hpp>

using namespace eosio;
using std::map;
using std::string;

CONTRACT map_nest2 : public eosio::contract {
public:
   using contract::contract;

   using t_details = map<string, string>;
   ACTION adddetails(name actor, map<string, string> details, map<string, t_details> nested_details) {}
};