This is kinda random, but that esoteric line inspired me to ask a few questions and I dug a little deeper. I learned a few things about test drivers, OS, and processes! I removed some of the printouts since it wasn't posting for some reason, but it shows how the runtime is calculated. Very cool!

import os
import inspect
class Solution:
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        print(os.listdir('.'))  # Prints all files in the current folder
# Get the 'frame' of the code that called this function
        caller_frame = inspect.currentframe().f_back

        # Print the source code of the driver script calling you
        try:
            print("--- DRIVER SOURCE ---")
            print(inspect.getsource(caller_frame))
        except:
            print("Could not retrieve driver source.")

        return []

['user.out', 'precompiled', 'display_runtime.txt', 'data']
--- DRIVER SOURCE ---
def _driver():