code: public List<Field> getForeignKeyFields() {
          List<Field> fields = new ArrayList<Field>();
          for (Field field : model.getClass().getDeclaredFields()) {
              if (field.isAnnotationPresent(OpenEngSBForeignKey.class)) {
                  fields.add(field);
              }
          }
          return fields;
      }
docs: Returns a list of foreign key fields for the Engineering Object model.