
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocGroup({"tag": "caret", "client": "e"}, []),
            DocChars("r "), DocGroup({"client": "a", "tag": "caret"}, []),
            DocChars("V "), DocGroup({"client": "c", "tag": "caret"}, []),
            DocChars("Hg"), DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars(" v"), DocGroup({"client": "f", "tag": "caret"}, []),
            DocChars("2K "), DocGroup({"tag": "caret", "client": "g"}, []),
            DocChars(" ")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("rH u"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars(" ")
        ])
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("e M")
        ]),
        DocGroup({"tag": "pre"}, [
            DocChars(" at\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(1), DelChars(1), DelGroup([]),
            DelSkip(1), DelChars(1), DelGroup([]),
            DelChars(2), DelGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(3), DelWithGroup([]),
            DelSkip(1)
        ]),
        DelWithGroup([
            DelSkip(4), DelGroup([])
        ])
    ])
]
a_add: [
    AddGroup({"tag": "p"}, [
        AddChars("52"), AddGroup({"client": "a", "tag": "caret"}, []),
        AddChars(" 4"), AddGroup({"client": "b", "tag": "caret"}, []),
        AddChars(" 8"), AddGroup({"client": "c", "tag": "caret"}, []),
        AddWithGroup([]),
        AddSkip(1), AddGroup({"client": "d", "tag": "caret"}, []),
        AddChars("70"), AddSkip(3), AddWithGroup([]),
        AddSkip(3), AddWithGroup([]),
        AddSkip(1)
    ]),
    AddWithGroup([
        AddSkip(4)
    ])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelGroup([]),
            DelChars(1), DelSkip(16)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h2"}, [
            AddSkip(1), AddGroup({"tag": "caret", "client": "e"}, []),
            AddSkip(15)
        ])
    ])
]
