
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "p"}, [
            DocGroup({"client": "a", "tag": "caret"}, []),
            DocChars("Wb "), DocGroup({"tag": "caret", "client": "e"}, [])
        ]),
        DocGroup({"tag": "p"}, [
            DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars("Wj 105k2M2QTpGb2Y0ello iqLe w1"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars("F H")
        ])
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("at\'s up with you?")
    ])
]

a_del: [
    DelWithGroup([
        DelGroup([
            DelGroup([]),
            DelChars(2), DelSkip(2)
        ])
    ])
]
a_add: [
    AddWithGroup([
        AddGroup({"tag": "h1"}, [
            AddChars("Y3"), AddGroup({"tag": "caret", "client": "a"}, []),
            AddChars(" B"), AddSkip(2)
        ])
    ])
]

b_del: [
    DelGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(1), DelChars(2), DelWithGroup([])
        ]),
        DelWithGroup([
            DelWithGroup([]),
            DelSkip(28), DelChars(2), DelGroup([])
        ])
    ])
]
b_add: [
    AddGroup({"tag": "p"}, [
        AddWithGroup([]),
        AddSkip(1), AddChars("s1")
    ]),
    AddGroup({"tag": "p"}, [
        AddGroup({"tag": "caret", "client": "b"}, []),
        AddWithGroup([])
    ]),
    AddWithGroup([
        AddWithGroup([]),
        AddSkip(28)
    ])
]
