test func for kwargs parseing

def dummy_func(arg1, arg2, arg3=None, arg4=[1, 2, 3], arg5={}, **kwargs):
    """
    test func for kwargs parseing
    """
    foo = kwargs.get('foo', None)
    bar = kwargs.pop('bar', 4)
    foo2 = kwargs['foo2']
    foobar = str(foo) + str(bar) + str(foo2)
    return foobar