$3\mathrm{.}12$ Generators

Question: Create a Python generator function called fibonacci that yields the sequence of Fibonacci numbers indefinitely.

Hint:

A generator function can produce a sequence over time rather than all at once. For the Fibonacci sequence, start with two numbers, $0$ and $1.$ Use a loop inside the generator to continuously produce the next Fibonacci number by summing the two most recent numbers.

def fibonacci$($n$)$: