How to use the @esri/arcgis-rest-auth.UserSession.deserialize function in @esri/arcgis-rest-auth

loadSerializedSession() {
      if (typeof Storage !== "undefined") {
        const serializedSession = localStorage.getItem(
          "__ARCGIS_REST_USER_SESSION__"
        );
        if (serializedSession !== null && serializedSession !== "undefined") {
          // If there is a serialized session, deserialize it into a new session object.
          store.dispatch(
            "updateSession",
            UserSession.deserialize(serializedSession)
          );
        }
      }
    }
  },

decoder: sessionContents => {
          const sessionObj = JSON.parse(sessionContents);
          sessionObj.userSession = UserSession.deserialize(
            sessionObj.userSession
          );
          return sessionObj;
        }
      })