rtc fixes

Author: louisjoecodes

Sources/ElevenLabs/Models/ConversationConfig.swift

@@ -27,12 +27,12 @@ public struct ConversationConfig: Sendable {
 public struct AgentOverrides: Sendable {
     public var prompt: String?
     public var firstMessage: String?
-    public var language: String?
+    public var language: Language?
 
     public init(
         prompt: String? = nil,
         firstMessage: String? = nil,
-        language: String? = nil
+        language: Language? = nil
     ) {
         self.prompt = prompt
         self.firstMessage = firstMessage

Sources/ElevenLabs/Models/Language.swift

@@ -0,0 +1,6 @@
+import Foundation
+
+/// Supported languages for conversation agents
+public enum Language: String, Codable, Sendable {
+    case en, ja, zh, de, hi, fr, ko, pt, it, es, id, nl, tr, pl, sv, bg, ro, ar, cs, el, fi, ms, da, ta, uk, ru, hu, no, vi
+}

Sources/ElevenLabs/Protocol/EventSerializer.swift

@@ -66,7 +66,7 @@ enum EventSerializer {
                 agent["first_message"] = firstMessage
             }
             if let language = agentOverrides.language {
-                agent["language"] = language
+                agent["language"] = language.rawValue
             }
             if !agent.isEmpty {
                 configOverride["agent"] = agent