
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "pre"}, [
            DocChars("A4"), DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars(" 32G")
        ]),
        DocGroup({"tag": "pre"}, [
            DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("b2Q"), DocGroup({"tag": "caret", "client": "c"}, []),
            DocGroup({"tag": "caret", "client": "g"}, []),
            DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("3")
        ]),
        DocGroup({"tag": "pre"}, [
            DocChars("gA"), DocGroup({"tag": "caret", "client": "b"}, []),
            DocChars("F"), DocGroup({"tag": "caret", "client": "f"}, []),
            DocChars("8RD7Txlo world  hat\'s up with you?")
        ])
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelSkip(2), DelWithGroup([]),
            DelSkip(3), DelChars(1)
        ]),
        DelGroup([
            DelGroup([]),
            DelChars(1), DelSkip(2), DelGroup([]),
            DelWithGroup([]),
            DelWithGroup([]),
            DelSkip(1)
        ]),
        DelWithGroup([
            DelSkip(2), DelGroup([])
        ])
    ])
]
a_add: [
    AddGroup({"tag": "pre"}, [
        AddChars("0F"), AddSkip(2), AddWithGroup([]),
        AddSkip(3), AddGroup({"tag": "caret", "client": "b"}, []),
        AddGroup({"client": "c", "tag": "caret"}, []),
        AddChars("5"), AddGroup({"client": "a", "tag": "caret"}, []),
        AddChars(" 6"), AddSkip(2), AddChars("Q"), AddWithGroup([]),
        AddWithGroup([]),
        AddSkip(1)
    ]),
    AddWithGroup([
        AddSkip(2)
    ])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(1), DelChars(1), DelGroup([]),
            DelChars(2), DelSkip(2)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "pre"}, [
            AddSkip(1), AddGroup({"client": "d", "tag": "caret"}, []),
            AddSkip(2)
        ])
    ])
]
