
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "p"}, [
            DocChars("4"), DocGroup({"client": "b", "tag": "caret"}, []),
            DocChars("P p "), DocGroup({"client": "c", "tag": "caret"}, []),
            DocChars("3R1 8"), DocGroup({"client": "d", "tag": "caret"}, []),
            DocChars("1a")
        ]),
        DocGroup({"tag": "h2"}, [
            DocChars("s")
        ]),
        DocGroup({"tag": "h2"}, [
            DocChars("Cb7L"), DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("5")
        ])
    ]),
    DocGroup({"tag": "h2"}, [
        DocGroup({"client": "f", "tag": "caret"}, []),
        DocChars(" ")
    ]),
    DocGroup({"tag": "p"}, [
        DocChars("t\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelSkip(1), DelWithGroup([]),
            DelSkip(4), DelWithGroup([]),
            DelSkip(5), DelWithGroup([]),
            DelSkip(2)
        ]),
        DelGroup([
            DelSkip(1)
        ]),
        DelWithGroup([
            DelSkip(1), DelChars(1), DelSkip(2), DelGroup([])
        ])
    ])
]
a_add: [
    AddGroup({"tag": "p"}, [
        AddSkip(1), AddWithGroup([]),
        AddSkip(4), AddWithGroup([]),
        AddSkip(5), AddWithGroup([]),
        AddSkip(2), AddGroup({"client": "a", "tag": "caret"}, []),
        AddSkip(1)
    ]),
    AddWithGroup([
        AddSkip(3)
    ])
]

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