def f_0():
    # inline comment
    < try replacing with triple quotes >
    return 4

def f_1():
    """
    ghbrown's first comment
    """
    return 1

def f_2():
    """
    ghbrown's second comment
    """
    return 1

def f_3():
    """
    ghbrown's third comment
    """
    return 1