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Define a variable with name n and export it from the current namespace.
ns ← { exported ⇐ 5, unexported ← 0}
ns.exported
ns.unexported
Export the names given in n from the current namespace. Names must be defined somewhere in the scope.
ns1 ← { ⟨alsoexported⟩⇐, exported ⇐ 5, alsoexported ← 0}
ns1.exported
ns1.alsoexported