Using the node client i had a similar experience. For

lookupSubjects

i had to specify

optionalConcreteLimit: 0

. The name states it is optional but the typescript types does not conform with the name. Also, setting any other value than

0

gave me the same error you got. It is quite confusing. In this case i would expect it to just not be a property at all or at least that it would be optional also in the eyes of typescript 🙏