
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("7U"), DocGroup({"client": "b", "tag": "caret"}, []),
            DocChars("E6 ")
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("6rp1 ea"), DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars("uBp1 38RNd")
        ])
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("OM"), DocGroup({"client": "d", "tag": "caret"}, []),
        DocChars("6V"), DocGroup({"tag": "caret", "client": "a"}, []),
        DocChars("TV c7g5 E hw  Hello world!What\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelWithGroup([
            DelWithGroup([]),
            DelSkip(1), DelChars(1), DelGroup([]),
            DelSkip(3)
        ]),
        DelWithGroup([
            DelSkip(7), DelGroup([]),
            DelSkip(10)
        ])
    ]),
    DelWithGroup([
        DelSkip(2), DelGroup([]),
        DelSkip(1), DelChars(1)
    ])
]
a_add: [
    AddWithGroup([
        AddWithGroup([]),
        AddSkip(2), AddGroup({"client": "b", "tag": "caret"}, []),
        AddSkip(2)
    ]),
    AddWithGroup([
        AddSkip(6), AddGroup({"tag": "caret", "client": "c"}, []),
        AddSkip(11)
    ]),
    AddWithGroup([
        AddSkip(3), AddChars("53"), AddGroup({"tag": "caret", "client": "d"}, [])
    ])
]

b_del: [
    DelWithGroup([
        DelWithGroup([])
    ])
]
b_add: [
    AddWithGroup([
        AddWithGroup([
            AddChars(" ")
        ])
    ])
]
