How to tell kysely key-gen to use primitive data types when mapping db tables

Question

I am using kysely-codegen to generate all the models from the database, but I am seeing a weird behavior in there, it is adding a Generated type on any field, why is not generating a number or boolean only?

Does anybody know if it is possible to prevent this?

export interface MyTable {
  id: Generated<Numeric>
  otherColumn: Generated<boolean>