
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "p"}, [
            DocGroup({"client": "c", "tag": "caret"}, []),
            DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("DO")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars(" 1YM jB"), DocGroup({"client": "f", "tag": "caret"}, []),
            DocGroup({"client": "b", "tag": "caret"}, []),
            DocChars("0"), DocGroup({"tag": "caret", "client": "a"}, []),
            DocGroup({"client": "d", "tag": "caret"}, []),
            DocChars("at\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelWithGroup([
            DelWithGroup([]),
            DelWithGroup([]),
            DelSkip(2)
        ]),
        DelWithGroup([
            DelSkip(3), DelChars(2), DelSkip(1), DelChars(1), DelWithGroup([]),
            DelGroup([]),
            DelSkip(1)
        ])
    ])
]
a_add: [
    AddWithGroup([
        AddWithGroup([]),
        AddWithGroup([]),
        AddSkip(2)
    ]),
    AddWithGroup([
        AddSkip(3), AddGroup({"client": "b", "tag": "caret"}, []),
        AddSkip(1), AddWithGroup([]),
        AddSkip(1)
    ])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(4)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "p"}, [
            AddChars("a"), AddSkip(4)
        ])
    ])
]
