 Problematic code:
 Problematic code:def foo(n):
    """A dummy string.
    :rtype: int
    """
    return n ** 10
 Correct code:
 Correct code:def foo(n):
    """A dummy string.
    :returns: a result.
    :rtype: int
    """
    return n ** 10
Please add documentation about what this method returns.