#cases [{output #err <mismatch type>
         select mixed-numbers}
        {output #err <mismatch type>
         select mixed-scalars}
        {output #err <mismatch type>
         select null-and-value}
        {output #err <mismatch type>
         select lists}
        {output #err <mismatch type>
         select maps}
        {output #err <mismatch type>
         select functions}
        {output #err <arity mismatch>
         select no-arguments}
        {output #err <arity mismatch>
         select one-argument}
        {output #err <arity mismatch>
         select extra-argument}]