def log_benchmark(fn, start, end):
    """
    Log a given function and how long the function takes in seconds
    :param str fn: Function name
    :param float start: Function start time
    :param float end: Function end time
    :return none:
    """
    elapsed = round(end - start, 2)
    line = ("Benchmark - Function: {} , Time: {} seconds".format(fn, elapsed))
    return line