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I understand swift is open source. However, i can't seem to find the complete source code in GitHub. For example, RandomAccessCollection protocol has a property count default implementation but upon looking through the source provided in GitHub:<a href="https://github.com/apple/swift/blob/master/stdlib/public/core/RandomAccessCollection.swift" rel="nofollow noreferrer" style="margin: 0px; padding: 0px; border: 0px; color: rgb(0, 89, 153); text-decoration: none; cursor: pointer;">https://github.com/apple/swift/blob/master/stdlib/public/core/RandomAccessCollection.swift</a></p>
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the implementation of the count property is not provided. This is just one of the many examples where code provided to us in GitHub is incomplete. Where do we get the complete source for RandomAccessCollection protocol as an example? Thanks.</p>
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