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gleam_stdlib gen src gleam@pair.erl
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gen/src/gleam@pair.erl

-module(gleam@pair).
-compile(no_auto_import).
-export([first/1, second/1, swap/1]).
first(Tup) ->
{A, _} = Tup,
A.
second(Tup) ->
{_, A} = Tup,
A.
swap(Tup) ->
{A, B} = Tup,
{B, A}.