A common platform interface for the platform_object_channel plugin.

This interface allows platform-specific implementations of the platform_object_channel plugin, as well as the plugin itself, to ensure they are supporting the same interface.


To implement a new platform-specific implementation of platform_object_channel, extend PlatformObjectChannelInterface with an implementation that performs the platform-specific behavior, and when you register your plugin, set the default PlatformObjectChannelInterface by calling PlatformObjectChannelInterface.instance = MyPlatformObjectChannel().