KeyValueStorage to actually store the data.
How often the expired data needs to be checked in minutes.
Stops the continuous cleanup timer.
Tries to get the data for the given key.
In case the data exists but has expired,
it will be deleted and undefined will be returned instead.
Checks if the given data entry has expired.
Deletes all entries that have expired.
Creates a new object where the expires field is a Date instead of a string.
Creates a new object where the expires field is a string instead of a Date.
A storage that wraps around another storage and expires resources based on the given (optional) expiry date. Will delete expired entries when trying to get their value. Has a timer that will delete all expired data every hour (default value).