https://developer.android.google.cn/reference/kotlin/androidx/media3/common/util/ExperimentalApi
ExperimentalApi | API reference | Android Developers
api referenceexperimentalapiandroiddevelopers
https://players.castlabs.com/android/latest/docs/javadoc/player_sdk/com/castlabs/android/player/PlayerController.ExperimentalApi.html
PlayerController.ExperimentalApi (Castlabs Player SDK - SDK Core - [4.4.11])
declaration: package: com.castlabs.android.player, class: PlayerController, class: ExperimentalApi
experimentalapicastlabsplayersdkcore