Whether store implements the user-data contract (getUserData, setUserData, deleteUserData, listUserData; purgeExpiredUserData is optional). All built-in stores do; custom stores may not.
store
getUserData
setUserData
deleteUserData
listUserData
purgeExpiredUserData
Whether
storeimplements the user-data contract (getUserData,setUserData,deleteUserData,listUserData;purgeExpiredUserDatais optional). All built-in stores do; custom stores may not.