
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocGroup({"tag": "caret", "client": "g"}, []),
            DocChars("3 "), DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("4 ")
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("y"), DocGroup({"tag": "caret", "client": "a"}, []),
            DocGroup({"client": "c", "tag": "caret"}, []),
            DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("p57R")
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("x ib"), DocGroup({"client": "d", "tag": "caret"}, []),
            DocChars("23")
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("1")
        ])
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("0cxUR"), DocGroup({"tag": "caret", "client": "f"}, []),
        DocChars("k")
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("K up with you?")
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(1), DelChars(1)
        ]),
        DelGroup([
            DelChars(1), DelGroup([]),
            DelGroup([]),
            DelGroup([]),
            DelSkip(1), DelChars(1), DelSkip(2)
        ]),
        DelWithGroup([
            DelSkip(1), DelChars(3), DelGroup([]),
            DelChars(2)
        ]),
        DelSkip(1)
    ])
]
a_add: [
    AddGroup({"tag": "h1"}, [
        AddWithGroup([]),
        AddSkip(2), AddChars("r"), AddWithGroup([]),
        AddSkip(1), AddGroup({"tag": "caret", "client": "b"}, []),
        AddChars(" "), AddGroup({"client": "a", "tag": "caret"}, []),
        AddChars("qgh"), AddSkip(1), AddGroup({"client": "c", "tag": "caret"}, []),
        AddChars("k1o"), AddSkip(2)
    ]),
    AddWithGroup([
        AddSkip(1), AddGroup({"client": "d", "tag": "caret"}, [])
    ]),
    AddSkip(1)
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(1), DelChars(1), DelGroup([]),
            DelChars(1), DelSkip(1)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h3"}, [
            AddWithGroup([]),
            AddSkip(1), AddChars("D"), AddGroup({"tag": "caret", "client": "e"}, []),
            AddSkip(1)
        ])
    ])
]
