Moved Requests classes to here. Added some checks to requests.

Requests/UpdateDefaultTTSVoice.cs

@@ -1,4 +1,3 @@
-using HermesSocketLibrary.Requests;
 using HermesSocketServer.Store;
 using ILogger = Serilog.ILogger;
 
@@ -7,6 +6,7 @@ namespace HermesSocketServer.Requests
     public class UpdateDefaultTTSVoice : IRequest
     {
         public string Name => "update_default_tts_voice";
+        public string[] RequiredKeys => ["user", "voice"];
         private UserStore _users;
         private ILogger _logger;
 
@@ -18,21 +18,15 @@ namespace HermesSocketServer.Requests
 
         public async Task<RequestResult> Grant(string sender, IDictionary<string, object>? data)
         {
-            if (data == null)
-            {
-                _logger.Warning("Data received from request is null. Ignoring it.");
-                return new RequestResult(false, null);
-            }
-
             data["user"] = data["user"].ToString();
             data["voice"] = data["voice"].ToString();
 
             var success = _users.Modify(data["user"].ToString(), (user) => user.DefaultVoice = data["voice"].ToString()!);
             if (!success)
-                return new RequestResult(false, "Unable to find user data.", notifyClientsOnAccount: false);
+                return RequestResult.Failed("Unable to find user data.", notifyClientsOnAccount: false);
 
             _logger.Information($"Updated default TTS voice for channel [channel: {sender}][voice: {data["voice"]}]");
-            return new RequestResult(true, null);
+            return RequestResult.Successful(null);
         }
     }
 }