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        DocGroup({"tag": "caret", "client": "c"}, []),
        DocChars("j2   up with you?")
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]

a_del: [
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            DelSkip(1), DelChars(3), DelGroup([]),
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    DelGroup([
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        DelGroup([
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        DelWithGroup([
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        DelSkip(17), DelChars(5), DelGroup([]),
        DelGroup([]),
        DelSkip(1), DelChars(1), DelSkip(15)
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]
a_add: [
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]

b_del: [
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        DelGroup([
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            DelChars(1), DelSkip(3), DelWithGroup([]),
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    DelWithGroup([
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]
b_add: [
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]
