Mersenne Twister seed as a member variable

I want to know how to keep mersenne random number generatoras a member variable and use it in the same class.

I wrote the class as below and it works perfectly. But I do not like the that std::mt19937 is initialized. I would like to whether there is a way to initialize it in the constructor of the Test class?

#include <iostream>
#include <cmath>
#include<random>
#include<chrono>
#include <ctime>

class Test{
public:
    Test()
    {

    }
    void foo()
    {
        auto randomNum = std::uniform_int_distribution<>(0, threads.size())(m_random);
    }

private:
    std::mt19937 m_random{std::chrono::high_resolution_clock::now().time_since_epoch().count()};
};