How can I put an tensorflow model as args into a map function?

def map(data, model): model.fit(data)

I want to put an tensorflow model into map function as args, However, the model has changed compared to before. So I am unable to train this model in the map function. Why is that? Why the tensorflow model changes after putting it into the map function.

I think you had better offer a more complete example, showing expected and actual output, so that we can know what you are trying to achieve and what code you are using.