Retrieves the in-app message that was most recently deferred for display with [[deferInAppMessage]].
deferInAppMessage
Note: Retrieving the deferred in-app message here will clear it from storage.
Resolves to the deferred in-app message if it exists, or returns null. Returns undefined if the SDK has not been initialized.
Retrieves the in-app message that was most recently deferred for display with [[
deferInAppMessage]].Note: Retrieving the deferred in-app message here will clear it from storage.