#cases [{output #err <mismatch type>
         select null-input}
        {output #err <mismatch type>
         select string-input}
        {output #err <mismatch type>
         select map-input}
        {output #err <mismatch type>
         select integer-input}
        {output #err <mismatch type>
         select boolean-input}
        {output #err <mismatch type>
         select tagged-input}
        {output #err <arity mismatch>
         select missing-argument}
        {output #err <arity mismatch>
         select extra-argument}]