
doc:   [
    DocGroup({"tag": "p"}, [
        DocChars("b"), DocGroup({"tag": "caret", "client": "a"}, []),
        DocChars("OFi"), DocGroup({"tag": "caret", "client": "d"}, [])
    ]),
    DocGroup({"tag": "h2"}, [
        DocGroup({"tag": "caret", "client": "c"}, []),
        DocChars("Clo world!7"), DocGroup({"tag": "caret", "client": "b"}, [])
    ]),
    DocGroup({"tag": "h1"}, [
        DocChars("at\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelChars(1), DelGroup([]),
        DelChars(3), DelWithGroup([])
    ]),
    DelGroup([
        DelWithGroup([]),
        DelSkip(5), DelChars(6), DelGroup([])
    ]),
    DelGroup([
        DelChars(1), DelSkip(16)
    ])
]
a_add: [
    AddGroup({"tag": "h1"}, [
        AddGroup({"client": "a", "tag": "caret"}, []),
        AddChars("J"), AddWithGroup([])
    ]),
    AddGroup({"tag": "bullet"}, [
        AddGroup({"tag": "h2"}, [
            AddChars(" ")
        ]),
        AddGroup({"tag": "h2"}, [
            AddWithGroup([]),
            AddSkip(5), AddChars(" B")
        ])
    ]),
    AddGroup({"tag": "h1"}, [
        AddChars("m"), AddGroup({"tag": "caret", "client": "b"}, [])
    ]),
    AddGroup({"tag": "p"}, [
        AddChars(" "), AddSkip(16)
    ])
]

b_del: [
    DelGroup([
        DelChars(1), DelWithGroup([]),
        DelSkip(3), DelWithGroup([])
    ]),
    DelGroup([
        DelGroup([]),
        DelSkip(10), DelChars(1), DelWithGroup([])
    ]),
    DelGroup([
        DelSkip(17)
    ])
]
b_add: [
    AddGroup({"tag": "bullet"}, [
        AddGroup({"tag": "h3"}, [
            AddChars(" "), AddWithGroup([]),
            AddSkip(1), AddChars(" "), AddGroup({"tag": "caret", "client": "c"}, [])
        ]),
        AddGroup({"tag": "p"}, [
            AddSkip(2), AddWithGroup([]),
            AddSkip(10), AddWithGroup([]),
            AddChars("C"), AddSkip(17)
        ])
    ])
]
