Exercise 8 of week 2 -Model

Hi, I am getting the same problem. I understand what you mean, but the num_iterations=2000 is present while defining the function model, as shown below:

Similarly when the optimize was defined, num_iterations=100 is given, as shown below.

So should we go ahead and remove the part where we assign it a value of 100 or 2000? Or something else? Or am I misunderstanding entirely?