#cases [{output #err <invalid value>
         select zero-size}
        {output #err <invalid value>
         select negative-size}
        {output #err <invalid value>
         select zero-step}
        {output #err <invalid value>
         select negative-step}
        {output #err <invalid value>
         select empty-zero}
        {output #err <mismatch type>
         select fractional-size}
        {output #err <mismatch type>
         select fractional-step}
        {output #err <mismatch type>
         select list}
        {output #err <arity mismatch>
         select missing}
        {output #err <arity mismatch>
         select transducer}
        {output #err <arity mismatch>
         select extra}]