
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h1"}, [
            DocChars("4kBS"), DocGroup({"tag": "caret", "client": "f"}, [])
        ]),
        DocGroup({"tag": "pre"}, [
            DocGroup({"client": "c", "tag": "caret"}, []),
            DocChars(" b"), DocGroup({"client": "d", "tag": "caret"}, []),
            DocChars("Bl vQ37t3"), DocGroup({"client": "b", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("ff"), DocGroup({"client": "a", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "h3"}, [
            DocChars("B"), DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("6e0llo worl at\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelWithGroup([
            DelSkip(4), DelWithGroup([])
        ]),
        DelWithGroup([
            DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(9), DelWithGroup([])
        ]),
        DelWithGroup([
            DelSkip(2), DelGroup([])
        ]),
        DelWithGroup([
            DelChars(1), DelWithGroup([]),
            DelSkip(2)
        ])
    ])
]
a_add: [
    AddWithGroup([
        AddSkip(4), AddWithGroup([])
    ]),
    AddWithGroup([
        AddWithGroup([]),
        AddSkip(2), AddWithGroup([]),
        AddSkip(9), AddWithGroup([])
    ]),
    AddWithGroup([
        AddSkip(2)
    ]),
    AddWithGroup([
        AddChars("F"), AddWithGroup([]),
        AddSkip(2), AddGroup({"client": "a", "tag": "caret"}, [])
    ])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(4), DelWithGroup([])
        ]),
        DelGroup([
            DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(8), DelChars(1), DelGroup([])
        ]),
        DelGroup([
            DelSkip(3)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h3"}, [
            AddSkip(4), AddWithGroup([]),
            AddChars("J"), AddWithGroup([]),
            AddSkip(1), AddChars("b"), AddGroup({"client": "b", "tag": "caret"}, []),
            AddChars("g"), AddSkip(1), AddWithGroup([]),
            AddSkip(8)
        ]),
        AddGroup({"tag": "p"}, [
            AddSkip(3)
        ])
    ])
]
