Given an array of integers your solution should find the smallest integer. 
For example:
- Given `[34, 15, 88, 2]` your solution will return `2`
- Given `[34, -345, -1, 100]` your solution will return `-345`
You can assume, for the purpose of this kata, that the supplied array will not be empty.
def find_smallest_int(arr):
    smallest = arr[0]
    for n in arr[1:]:
        if n < smallest:
            smallest = n
    return smallest
def find_smallest_int(arr):
    smallest = arr[0]
    for n in arr[1:]:
        if n < smallest:
            smallest = n
    return smallest