
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocGroup({"client": "c", "tag": "caret"}, []),
            DocChars("M"), DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("Vg"), DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars("1d 6")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars(" dc7"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("Qk6")
        ]),
        DocGroup({"tag": "p"}, [
            DocChars("xO X J5ello world!jWhat\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(1), DelGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(4)
        ]),
        DelWithGroup([
            DelSkip(1), DelChars(3), DelGroup([])
        ]),
        DelSkip(1)
    ])
]
a_add: [
    AddGroup({"tag": "p"}, [
        AddGroup({"tag": "caret", "client": "a"}, []),
        AddWithGroup([]),
        AddSkip(3), AddWithGroup([]),
        AddSkip(4)
    ]),
    AddWithGroup([
        AddSkip(1), AddChars("I4"), AddGroup({"client": "b", "tag": "caret"}, [])
    ]),
    AddSkip(1)
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelGroup([]),
            DelSkip(1), DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(3), DelChars(1)
        ]),
        DelGroup([
            DelSkip(8)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "p"}, [
            AddSkip(1), AddWithGroup([]),
            AddSkip(2), AddWithGroup([]),
            AddSkip(3), AddChars("G"), AddGroup({"client": "c", "tag": "caret"}, []),
            AddChars("N"), AddSkip(8)
        ])
    ])
]
