
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "h2"}, [
            DocGroup({"tag": "caret", "client": "a"}, []),
            DocChars("J"), DocGroup({"client": "c", "tag": "caret"}, []),
            DocChars("4508 "), DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars(" ")
        ]),
        DocGroup({"tag": "h2"}, [
            DocChars(" T I")
        ]),
        DocGroup({"tag": "h2"}, [
            DocChars("DFfo ")
        ])
    ]),
    DocGroup({"tag": "p"}, [
        DocGroup({"client": "d", "tag": "caret"}, []),
        DocChars("o"), DocGroup({"client": "b", "tag": "caret"}, []),
        DocChars(" ")
    ]),
    DocGroup({"tag": "h3"}, [
        DocChars("b"), DocGroup({"tag": "caret", "client": "f"}, []),
        DocChars("  5Sjl G 76g T  1a")
    ]),
    DocGroup({"tag": "h3"}, [
        DocChars("UyW7pa1JGx5D5 6 with you?")
    ])
]

a_del: [
    DelGroup([
        DelGroup([
            DelGroup([]),
            DelSkip(1), DelWithGroup([]),
            DelSkip(5), DelWithGroup([]),
            DelSkip(1)
        ]),
        DelGroup([
            DelChars(1), DelSkip(3)
        ]),
        DelWithGroup([
            DelSkip(5)
        ])
    ]),
    DelGroup([
        DelWithGroup([]),
        DelSkip(1), DelGroup([]),
        DelChars(1)
    ]),
    DelWithGroup([])
]
a_add: [
    AddGroup({"tag": "h1"}, [
        AddSkip(1), AddWithGroup([]),
        AddSkip(5), AddChars(" "), AddWithGroup([]),
        AddSkip(1), AddGroup({"tag": "caret", "client": "a"}, []),
        AddSkip(3)
    ]),
    AddWithGroup([
        AddSkip(5)
    ]),
    AddGroup({"tag": "h2"}, [
        AddWithGroup([]),
        AddSkip(1), AddChars("BD"), AddGroup({"client": "b", "tag": "caret"}, [])
    ]),
    AddWithGroup([])
]

b_del: [
    DelWithGroup([
        DelGroup([
            DelWithGroup([]),
            DelSkip(1), DelGroup([]),
            DelSkip(7)
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "h3"}, [
            AddWithGroup([]),
            AddSkip(1), AddChars("w"), AddGroup({"tag": "caret", "client": "c"}, []),
            AddChars("c"), AddSkip(7)
        ])
    ])
]
