
doc:   [
    DocGroup({"tag": "h2"}, [
        DocChars("4"), DocGroup({"tag": "caret", "client": "b"}, []),
        DocChars("0nI10tIh 3")
    ]),
    DocGroup({"tag": "h2"}, [
        DocGroup({"tag": "caret", "client": "d"}, []),
        DocChars("2t0aFQ  7loLG")
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h2"}, [
            DocChars("q")
        ]),
        DocGroup({"tag": "p"}, [
            DocChars(" 5"), DocGroup({"client": "a", "tag": "caret"}, []),
            DocChars("FH1M6")
        ])
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h2"}, [
            DocChars(" x")
        ]),
        DocGroup({"tag": "h2"}, [
            DocChars(" H ")
        ])
    ]),
    DocGroup({"tag": "pre"}, []),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "pre"}, [
            DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars(" 1s Y1")
        ])
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "pre"}, [
            DocChars(" mSHw8pAE ")
        ])
    ]),
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars(" b JWhat\'s up with you?")
        ])
    ])
]

a_del: [
    DelWithGroup([
        DelSkip(1), DelWithGroup([]),
        DelSkip(10)
    ]),
    DelWithGroup([
        DelWithGroup([]),
        DelSkip(13)
    ]),
    DelGroup([
        DelWithGroup([
            DelSkip(1)
        ]),
        DelWithGroup([
            DelChars(2), DelGroup([]),
            DelChars(2)
        ])
    ])
]
a_add: [
    AddWithGroup([
        AddSkip(1), AddWithGroup([]),
        AddSkip(10)
    ]),
    AddWithGroup([
        AddWithGroup([]),
        AddSkip(13)
    ]),
    AddWithGroup([
        AddSkip(1)
    ]),
    AddWithGroup([
        AddChars(" F"), AddGroup({"client": "a", "tag": "caret"}, [])
    ])
]

b_del: [
    DelGroup([
        DelChars(1), DelGroup([]),
        DelChars(2), DelSkip(8)
    ]),
    DelWithGroup([
        DelWithGroup([]),
        DelSkip(13)
    ]),
    DelWithGroup([])
]
b_add: [
    AddGroup({"tag": "h2"}, [
        AddChars("4")
    ]),
    AddGroup({"tag": "p"}, [
        AddSkip(8)
    ]),
    AddWithGroup([
        AddWithGroup([]),
        AddSkip(13)
    ]),
    AddWithGroup([
        AddWithGroup([
            AddGroup({"client": "b", "tag": "caret"}, [])
        ])
    ])
]
