
doc:   [
    DocGroup({"tag": "bullet"}, [
        DocGroup({"tag": "pre"}, [
            DocChars("R"), DocGroup({"client": "a", "tag": "caret"}, []),
            DocChars("tM"), DocGroup({"tag": "caret", "client": "d"}, []),
            DocChars("  "), DocGroup({"client": "e", "tag": "caret"}, []),
            DocChars("w "), DocGroup({"client": "f", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "pre"}, [
            DocChars("nrp"), DocGroup({"client": "b", "tag": "caret"}, [])
        ]),
        DocGroup({"tag": "pre"}, [
            DocChars("4"), DocGroup({"tag": "caret", "client": "c"}, []),
            DocChars(" llo worlR!What\'s up with you?")
        ])
    ])
]

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

b_del: [
    DelWithGroup([
        DelGroup([
            DelSkip(1), DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(2), DelWithGroup([]),
            DelSkip(2), DelWithGroup([])
        ]),
        DelGroup([
            DelChars(3), DelGroup([])
        ])
    ])
]
b_add: [
    AddWithGroup([
        AddGroup({"tag": "pre"}, [
            AddSkip(1), AddWithGroup([]),
            AddSkip(2), AddWithGroup([]),
            AddSkip(2), AddWithGroup([]),
            AddSkip(2), AddWithGroup([]),
            AddChars("NK"), AddGroup({"client": "b", "tag": "caret"}, []),
            AddChars("8")
        ])
    ])
]
