TapirCoproductTranslator_T_Aux
given TapirCoproductTranslator_T_Aux[T, ST, D, DN, DV, N <: TypeName, S](using val stst: SchemaTranslator[ST, S, Schema], val ev: NotGiven[IsSingletonSubtype[Aux[T, ST, D, DN, DV, N, S]]]): TapirCoproductTranslator[T, Aux[T, ST, D, DN, DV, N, S]]
Translate non-singleton subtype to tapir schema + matcher