Represents an immutable access token used to authenticate with Facebook services.
Optional application id for this token. Default:
An opaque authentication token.
Optional logged in user identifier.
Optional date the token was last refreshed (defaults to current date).
Optional expiration date (defaults to
Set of known granted permissions.
Set of known declined permissions.
currentaccess token will be updated automatically, so you don’t need to set it again.
Optional completion to call when the token was refreshed or failed.