docs: public ConstructorFilter build() {
          if(filters.isEmpty()) {
              throw new IllegalStateException("No filter specified.");
          }
          if(filters.size() == 1) {
              return filters.get(0);
          }
          ConstructorFilter[] methodFilters = new ConstructorFilter[filters.size()];
          filters.toArray(methodFilters);
          return new ConstructorFilterList(methodFilters);
      }