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iex> case {1, 2, 3} do
> {4, 5, 6} ->
> "This clause won't match"
> {1, x, 3} ->
> "This clause will match and bind x to 2 in this clause"
> _ ->
> "This clause would match any value"
> end
"This clause will match and bind x to 2 in this clause"