Find Smallest Integer in List

Use Python to find the smallest integer in a given list.

Write a function `find_smallest_int` that takes a list of integers `lst` and returns the smallest integer from this list. ### Parameters - `lst` (list[int]): A list of integers. Each integer `lst[i]` (-10^9 <= lst[i] <= 10^9) represents an integer from the list. ### Return Value - Returns the smallest integer value in the list `lst`. ### Examples: ```python find_smallest_int([34, 15, 88, 2]) # Output: 2 find_smallest_int([34, -345, -1, 100]) # Output: -345 find_smallest_int([19,5,-100,-33]) # Output: -100 ```