
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h3"}, [
            DocChars(" U "), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("D 0"), DocGroup({"client": "d", "tag": "caret"}, []),
            DocChars("  "), DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("b7")
        ]),
        DocGroup({"tag": "h3"}, [
            DocGroup({"client": "e", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "p"}, [
            DocChars(" "), DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars("d")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars(" OSg esiK")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("  ")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("B ")
        ])
    ]),
    DocGroup({"tag": "h1"}, []),
    DocGroup({"tag": "p"}, [
        DocChars("  tYello world")
    ]),
    DocGroup({"tag": "h3"}, [
        DocChars("Gt\'s up with you?")
    ])
]

a_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(2), DelChars(1), DelGroup([]),
            DelSkip(3), DelWithGroup([]),
            DelSkip(2), DelGroup([]),
            DelChars(1), DelSkip(1)
        ])
    ])
]
a_add: [
    AddWithGroup([
        AddGroup({"tag": "h3"}, [
            AddGroup({"client": "b", "tag": "caret"}, []),
            AddSkip(5), AddWithGroup([]),
            AddSkip(2), AddChars(" "), AddGroup({"tag": "caret", "client": "a"}, []),
            AddChars(" "), AddSkip(1)
        ])
    ])
]

b_del: [
    DelGroup([
        DelWithGroup([
            DelSkip(3), DelWithGroup([]),
            DelSkip(3), DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(2)
        ]),
        DelWithGroup([
            DelWithGroup([])
        ]),
        DelWithGroup([
            DelChars(1), DelGroup([]),
            DelChars(1)
        ]),
        DelSkip(3)
    ])
]
b_add: [
    AddWithGroup([
        AddSkip(3), AddWithGroup([]),
        AddSkip(3), AddWithGroup([]),
        AddSkip(2), AddWithGroup([]),
        AddSkip(2)
    ]),
    AddWithGroup([
        AddWithGroup([])
    ]),
    AddWithGroup([
        AddChars("0"), AddGroup({"tag": "caret", "client": "c"}, [])
    ])
]
