FoveatedStreamingProviderMessageChannel
A message channel between the host app and a streaming provider extension.
Declaration
@MainActor final class FoveatedStreamingProviderMessageChannelOverview
Message channels are created by the framework when the host app opens a channel and delivered to the extension via openMessageChannel(_:). Provider extensions do not construct values of this type directly.
A channel unifies both directions of message flow:
Messages the host app sends to the extension arrive on receivedMessages.
Data the extension receives from the streaming endpoint is delivered to the host app via send(_:).