As per the documentation, I'm trying to "unpack" a tuple like this:
let (a, _) = getSomeTupleValue()
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So, in that sense, I imagine I'm just assigning `a` to the first element of the
tuple, and discard the second.
However, this is what I'm getting when compiling:
Hint: '_`gensym639' is declared but not used [XDeclaredButNotUsed]
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How is that possible? Am I missing something?
