{ playReason : Jawa.PlayReason.PlayReason
, viewable : Jawa.Viewable.Viewable
}
https://docs.jwplayer.com/players/reference/advertising-events#onbeforeplay
decoder : Json.Decode.Decoder BeforePlay
A JSON decoder.
encode : BeforePlay -> Json.Encode.Value
A JSON encoder.
tag : String
The tag that describes this type.