I doubt these “models” are more than media fiction.
For whatever they’re worth, responsible Pakistan is not a model for NK.
Of course China would like NK nukes to be a threat China can use against competitors as Pak’s nukes are.
“For whatever they’re worth, responsible Pakistan is not a model for NK.”
It is wrong to put the words “responsible” and Pakistan together when discussing obtaining and proliferating nuclear weapons. Pakistan not only lied about its own developments, it has directly aided North Korea and others in their nuclear arms, and missile developments. Therefor, there is no “responsible Pakistan” in consideration or discussion.
The Pakistan “model” is one of a liar and a cheat who the international community reluctantly accepted as a nuclear power, after which Pakistan violated international rules on nuclear proliferation.
The portion of that that attracts the dictator in North Korea is that unlike Libya or even Iraq, Pakistan got to keep its nuclear weapons and was accepted as “normal” country with all the economic privileges that implies.
If THAT is what comes from any upcoming summit agreement, then history will one day show that Truman was wrong and MacArthur was right - the Korean war should have been won 100% by all means necessary.