OptionalissuerThe issuer of this event, as passed into the according API method. 'api' by default if no issuer was specified.
The current position (in seconds)
The target position (in seconds)
The time at which this event was fired
Event type, e.g. 'play'
Events which can be triggered by API calls, UI interactions, or player internals. The issuer identifies the origin of the action that triggered the event.