common/redisutility.h (12 lines of code) (raw):
#pragma once
#include "rediscommand.h"
#include <boost/optional.hpp>
#include <vector>
#include <algorithm>
namespace swss
{
boost::optional<std::string> fvsGetValue(
const std::vector<FieldValueTuple> &fvt,
const std::string &field,
bool case_insensitive = false);
}