
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("7 OQl"), DocGroup({"client": "c", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("hlo"), DocGroup({"client": "a", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("o")
        ])
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("n406  J"), DocGroup({"client": "e", "tag": "caret"}, []),
        DocGroup({"tag": "caret", "client": "b"}, []),
        DocChars("V")
    ]),
    DocGroup({"tag": "p"}, [
        DocGroup({"client": "d", "tag": "caret"}, []),
        DocChars("hat\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelWithGroup([
            DelSkip(5), DelWithGroup([])
        ]),
        DelWithGroup([
            DelSkip(3), DelGroup([])
        ]),
        DelWithGroup([
            DelSkip(1)
        ])
    ]),
    DelGroup([
        DelSkip(7), DelWithGroup([]),
        DelGroup([]),
        DelChars(1)
    ])
]
a_add: [
    AddWithGroup([
        AddGroup({"tag": "caret", "client": "a"}, []),
        AddSkip(5), AddWithGroup([])
    ]),
    AddWithGroup([
        AddSkip(3), AddChars("e")
    ]),
    AddWithGroup([
        AddSkip(1)
    ]),
    AddGroup({"tag": "p"}, [
        AddSkip(7), AddWithGroup([]),
        AddChars("Q")
    ]),
    AddGroup({"tag": "p"}, [
        AddChars(" "), AddGroup({"client": "b", "tag": "caret"}, [])
    ])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelChars(5), DelGroup([])
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h2"}, [
            AddGroup({"tag": "caret", "client": "c"}, []),
            AddChars("0")
        ])
    ])
]
