An array of notification actions representing the actions available to the user when the notification is presented.
URL of the image used to represent the notification when there is not enough space to display the notification itself.
Body text of the notification.
Arbitrary data that you want associated with the notification. This can be of any data type.
The direction in which to display the notification. Must be one
URL to the notification icon.
URL of an image to be displayed in the notification.
The notification's language as a BCP 47 language tag.
A boolean specifying whe