Add platform availability annotations

Author: andrewheard

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentClientContent.swift

@@ -19,6 +19,7 @@ import Foundation
 /// history and used as part of the prompt to the model to generate content.
 ///
 /// A message here will interrupt any current model generation.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentClientContent: Encodable {
   /// The content appended to the current conversation with the model.
   ///

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentClientMessage.swift

@@ -15,6 +15,7 @@
 import Foundation
 
 /// Messages sent by the client in the BidiGenerateContent RPC call.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 enum BidiGenerateContentClientMessage {
   /// Message to be sent in the first and only first client message.
   case setup(BidiGenerateContentSetup)
@@ -29,6 +30,7 @@ enum BidiGenerateContentClientMessage {
   case toolResponse(BidiGenerateContentToolResponse)
 }
 
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 extension BidiGenerateContentClientMessage: Encodable {
   enum CodingKeys: CodingKey {
     case setup

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentRealtimeInput.swift

@@ -28,6 +28,7 @@ import Foundation
 ///   to optimize for a fast start of the response from the model.
 /// - Is always assumed to be the user's input (cannot be used to populate
 ///   conversation history).
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentRealtimeInput: Encodable {
   /// These form the realtime audio input stream.
   let audio: Data?

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentServerContent.swift

@@ -19,6 +19,7 @@ import Foundation
 ///
 /// Content is generated as quickly as possible, and not in realtime. Clients
 /// may choose to buffer and play it out in realtime.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentServerContent: Decodable {
   /// The content that the model has generated as part of the current
   /// conversation with the user.

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentServerMessage.swift

@@ -15,6 +15,7 @@
 import Foundation
 
 /// Response message for BidiGenerateContent RPC call.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 public struct BidiGenerateContentServerMessage: Sendable {
   // TODO: Make this type `internal`
 

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentSetup.swift

@@ -20,6 +20,7 @@ import Foundation
 ///
 /// Clients should wait for a `BidiGenerateContentSetupComplete` message before
 /// sending any additional messages.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentSetup: Encodable {
   /// The fully qualified name of the publisher model.
   ///

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentSetupComplete.swift

@@ -15,4 +15,5 @@
 import Foundation
 
 /// Sent in response to a `BidiGenerateContentSetup` message from the client.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentSetupComplete: Decodable {}

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentToolCall.swift

@@ -16,6 +16,7 @@ import Foundation
 
 /// Request for the client to execute the `function_calls` and return the
 /// responses with the matching `id`s.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentToolCall: Decodable {
   /// The function call to be executed.
   let functionCalls: [FunctionCall]?

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentToolCallCancellation.swift

@@ -19,6 +19,7 @@ import Foundation
 /// cancelled. If there were side-effects to those tool calls, clients may
 /// attempt to undo the tool calls. This message occurs only in cases where the
 /// clients interrupt server turns.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentToolCallCancellation: Decodable {
   /// The ids of the tool calls to be cancelled.
   let ids: [String]?

FirebaseAI/Sources/Types/Internal/Live/BidiGenerateContentToolResponse.swift

@@ -22,6 +22,7 @@ import Foundation
 /// calling happens by exchanging the `Content` parts, while in the bidi
 /// GenerateContent APIs function calling happens over these dedicated set of
 /// messages.
+@available(iOS 15.0, macOS 12.0, macCatalyst 15.0, tvOS 15.0, watchOS 8.0, *)
 struct BidiGenerateContentToolResponse: Encodable {
   /// The response to the function calls.
   let functionResponses: [FunctionResponse]?