
doc:   [
    DocGroup({"tag": "h2"}, [
        DocChars("4 k  "), DocGroup({"client": "c", "tag": "caret"}, []),
        DocChars("J43"), DocGroup({"client": "b", "tag": "caret"}, []),
        DocChars("q"), DocGroup({"tag": "caret", "client": "a"}, [])
    ]),
    DocGroup({"tag": "pre"}, [
        DocChars("N")
    ]),
    DocGroup({"tag": "pre"}, [
        DocChars("5"), DocGroup({"tag": "caret", "client": "d"}, []),
        DocChars("P")
    ]),
    DocGroup({"tag": "pre"}, [
        DocChars("  6")
    ]),
    DocGroup({"tag": "h2"}, [
        DocChars("r 6Lm BlrN8N20y x  fuQ J mXlo wohat\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelSkip(5), DelGroup([]),
        DelSkip(1), DelChars(2), DelGroup([]),
        DelSkip(1), DelGroup([])
    ]),
    DelGroup([
        DelSkip(1)
    ]),
    DelSkip(1)
]
a_add: [
    AddGroup({"tag": "h2"}, [
        AddChars("Y"), AddGroup({"tag": "caret", "client": "c"}, []),
        AddChars("4"), AddSkip(5), AddChars("8T"), AddSkip(1), AddChars("5"), AddGroup({"tag": "caret", "client": "b"}, []),
        AddChars("4"), AddSkip(1)
    ]),
    AddGroup({"tag": "h2"}, [
        AddSkip(1)
    ]),
    AddWithGroup([
        AddGroup({"client": "a", "tag": "caret"}, [])
    ])
]

b_del: [
    DelWithGroup([
        DelSkip(5), DelWithGroup([]),
        DelSkip(3), DelWithGroup([]),
        DelSkip(1), DelWithGroup([])
    ]),
    DelGroup([
        DelChars(1)
    ]),
    DelGroup([
        DelChars(1), DelGroup([]),
        DelChars(1)
    ]),
    DelGroup([
        DelSkip(3)
    ])
]
b_add: [
    AddWithGroup([
        AddSkip(5), AddWithGroup([]),
        AddSkip(3), AddWithGroup([]),
        AddSkip(1), AddWithGroup([])
    ]),
    AddGroup({"tag": "pre"}, [
        AddChars("D"), AddGroup({"client": "d", "tag": "caret"}, [])
    ]),
    AddGroup({"tag": "p"}, [
        AddSkip(3)
    ])
]
