
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("4"), DocGroup({"client": "b", "tag": "caret"}, []),
            DocChars("IUaU"), DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars(" g"), DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("R")
        ]),
        DocGroup({"tag": "p"}, [
            DocChars("fN"), DocGroup({"client": "d", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "p"}, [
            DocChars("3lo wo Pat\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelChars(1), DelGroup([]),
            DelSkip(1), DelChars(3), DelGroup([]),
            DelChars(2), DelGroup([]),
            DelChars(1)
        ]),
        DelSkip(2)
    ])
]
a_add: [
    AddGroup({"tag": "h1"}, [
        AddChars("c8"), AddGroup({"tag": "caret", "client": "c"}, []),
        AddChars("b"), AddSkip(1), AddChars(" X")
    ]),
    AddGroup({"tag": "p"}, [
        AddGroup({"client": "b", "tag": "caret"}, []),
        AddGroup({"tag": "caret", "client": "a"}, []),
        AddChars("E")
    ]),
    AddSkip(2)
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(1), DelWithGroup([]),
            DelSkip(4), DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(1)
        ]),
        DelGroup([
            DelChars(2), DelGroup([])
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h1"}, [
            AddChars("p"), AddSkip(1), AddWithGroup([]),
            AddSkip(1), AddChars("v"), AddGroup({"tag": "caret", "client": "d"}, []),
            AddSkip(3), AddWithGroup([]),
            AddSkip(2), AddWithGroup([]),
            AddSkip(1), AddChars("36")
        ])
    ])
]
