docs: function forwardsManyToOneDescriptor(fieldName, declaredToModelName) {
      return {
          get() {
              const {
                  session: {
                      [declaredToModelName]: DeclaredToModel,
                  },
              } = this.getClass();
              const {
                  [fieldName]: toId,
              } = this._fields;
  
              return DeclaredToModel.withId(toId);
          },
          set(value) {
              this.update({
                  [fieldName]: normalizeEntity(value),
              });
          },
      };
  }