{
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    "StringUnicodeScalarView.swift",
    "StringVariant.swift",  
    "Substring.swift",
    "Unicode.swift",
    "UnicodeEncoding.swift",
    "UnicodeParser.swift",
    "UnicodeScalar.swift",
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    "UnavailableStringAPIs.swift",
    "UnmanagedOpaqueString.swift",
    "UnmanagedString.swift",
    "UTFEncoding.swift",
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    "Sort.swift",
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    "RangeReplaceableCollection.swift",
    "Indices.swift",
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    "UnfoldSequence.swift",
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        "SwiftNativeNSArray.swift"],
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    "Builtin.swift",
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    "BuiltinMath.swift",
    {
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      "IntegerTypes.swift",
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    "Floating": [
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      "FloatingPointParsing.swift",
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    "UnsafePointer.swift",
    "UnsafeRawPointer.swift",
    "UnsafeBufferPointer.swift",
    "UnsafeRawBufferPointer.swift"
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    "ShadowProtocols.swift"
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  "Playground": [
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    "Interval.swift",
    "Hashing.swift",
    "SipHash.swift",
    "Hasher.swift",
    "ErrorType.swift",
    "InputStream.swift",
    "LifetimeManager.swift",
    "ManagedBuffer.swift",
    "Misc.swift",
    "OptionSet.swift",
    "OutputStream.swift",
    "Policy.swift",
    "Print.swift",
    "REPL.swift",
    "Random.swift",
    "Runtime.swift",
    "RuntimeFunctionCounters.swift",
    "Shims.swift",
    "ThreadLocalStorage.swift",
    "Unmanaged.swift",
    "Availability.swift",
    "CommandLine.swift",
    "Tuple.swift",
    "NewtypeWrapper.swift",
    "UnsafeBitMap.swift",
    "DebuggerSupport.swift",
    "Equatable.swift",
    "Comparable.swift",
    "Hashable.swift",
    "Codable.swift",
    "MigrationSupport.swift"
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}