
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("1"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("1  O"), DocGroup({"tag": "caret", "client": "f"}, []),
            DocChars("iMr"), DocGroup({"client": "g", "tag": "caret"}, []),
            DocChars("756v")
        ]),
        DocGroup({"tag": "h1"}, [
            DocChars("14n"), DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars("mB78C417Dks ")
        ])
    ]),
    DocGroup({"tag": "h2"}, [
        DocGroup({"client": "a", "tag": "caret"}, []),
        DocChars("28A07"), DocGroup({"tag": "caret", "client": "c"}, []),
        DocChars("nB0  f5 87 eT3p bA8P2KK2"), DocGroup({"client": "e", "tag": "caret"}, [])
    ]),
    DocGroup({"tag": "h2"}, [
        DocChars("JM  up with you?")
    ])
]

a_del: [
    DelGroup([
        DelWithGroup([
            DelSkip(1), DelWithGroup([]),
            DelSkip(4), DelWithGroup([]),
            DelSkip(3), DelWithGroup([]),
            DelSkip(4)
        ]),
        DelWithGroup([
            DelSkip(3), DelWithGroup([]),
            DelSkip(9), DelChars(3)
        ])
    ]),
    DelWithGroup([
        DelGroup([])
    ])
]
a_add: [
    AddWithGroup([
        AddGroup({"tag": "caret", "client": "a"}, []),
        AddSkip(1), AddWithGroup([]),
        AddSkip(4), AddWithGroup([]),
        AddSkip(3), AddWithGroup([]),
        AddSkip(4)
    ]),
    AddWithGroup([
        AddSkip(3), AddWithGroup([]),
        AddSkip(9)
    ]),
    AddWithGroup([
        AddChars("x")
    ])
]

b_del: [
    DelWithGroup([
        DelWithGroup([
            DelSkip(1), DelGroup([])
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddWithGroup([
            AddChars("2"), AddGroup({"client": "b", "tag": "caret"}, []),
            AddChars("m"), AddSkip(1)
        ])
    ])
]
