def foo(a, b):
    """Returns a*b

    Works with numbers

    >>> foo(2, 3)
    6

    and strings:
    
    >>> foo('a', 3)
    'aaa'
    """
    return a*b
def foo(a, b):
    """Returns a*b

    Works with numbers

    >>> foo(2, 3)
    6

    and strings:
    
    >>> foo('a', 3)
    'aaa'
    """
    return a*b
Returns a*b      Works with numbers      >>> foo(2, 3)     6      and strings:          >>> foo('a', 3)     'aaa'