error[E0599]: no method named `typ` found for struct `rubo4e::v202501::vertrag::VertragBuilder<TypedBuilderFields>` in the current scope
 --> tests/builder/ui/bo_typ_setter_unavailable.rs:4:32
  |
4 |     let _ = Vertrag::builder().typ(BoTyp::Vertrag).build();
  |                                ^^^ method not found in `rubo4e::v202501::vertrag::VertragBuilder`
