
doc:   [
    DocGroup({"tag": "h1"}, [
        DocChars("ao"), DocGroup({"tag": "caret", "client": "c"}, [])
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("c")
        ]),
        DocGroup({"tag": "pre"}, [
            DocChars("3"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("h"), DocGroup({"client": "a", "tag": "caret"}, []),
            DocChars("at\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelChars(2), DelWithGroup([])
    ]),
    DelGroup([
        DelGroup([
            DelChars(1)
        ]),
        DelWithGroup([
            DelChars(1), DelGroup([]),
            DelSkip(1), DelGroup([])
        ])
    ])
]
a_add: [
    AddGroup({"tag": "h1"}, [
        AddChars("i"), AddGroup({"tag": "caret", "client": "a"}, []),
        AddChars("P"), AddGroup({"client": "b", "tag": "caret"}, []),
        AddChars("0"), AddWithGroup([]),
        AddChars("T")
    ]),
    AddWithGroup([
        AddSkip(1), AddChars("f")
    ])
]

b_del: [
    DelGroup([
        DelSkip(1), DelChars(1), DelGroup([])
    ]),
    DelWithGroup([
        DelWithGroup([])
    ])
]
b_add: [
    AddGroup({"tag": "bullet"}, [
        AddGroup({"tag": "h1"}, [
            AddChars(" "), AddGroup({"client": "c", "tag": "caret"}, []),
            AddChars("5 "), AddSkip(1), AddChars(" V")
        ])
    ]),
    AddWithGroup([
        AddWithGroup([
            AddChars("t")
        ])
    ])
]
