[Tutor] while loop

[Scott W Dunning]

Hello, I’m working on some practice exercises from my homework and I’m having some issues figuring out what is wanted.  

We’re working with the while loop and this is what the question states;

Write a function print_n that prints a string n times using iteration.

	"""Print the string `s`, `n` times. 


This is also in the exercises and I’m not sure what it means and why it’s there.

assert isinstance(s, str)
assert isinstance(n, int)


Any help is greatly appreciated!

Scott