fix linter

Author: KirillKurdyukov

src/Ydb.Sdk/src/Services/Topic/Producer.cs

@@ -51,9 +51,14 @@ public Task<SendResult> SendAsync(Message<TValue> message)
 
 public class Message<TValue>
 {
+    public Message(TValue data)
+    {
+        Data = data;
+    }
+
     public DateTime Timestamp { get; set; }
 
-    public TValue Data { get; set; }
+    public TValue Data { get; }
 
     public List<Metadata> Metadata { get; } = new();
 }

src/Ydb.Sdk/src/Services/Topic/ProducerBuilder.cs

@@ -47,13 +47,14 @@ public async Task<IProducer<TValue>> Build()
             throw new YdbProducerException($"Topic is not supported codec: {_config.Codec}");
         }
 
-        return new Producer<TValue>(
-            _config, initResponse, stream,
-            Serializer ?? (ISerializer<TValue>)(
-                Serializers.DefaultSerializers.TryGetValue(typeof(TValue), out var serializer)
-                    ? serializer
-                    : throw new YdbProducerException("The serializer is not set")
-            )
-        );
+        throw new NotImplementedException();
+        // return new Producer<TValue>(
+        //     _config, initResponse, stream,
+        //     Serializer ?? (ISerializer<TValue>)(
+        //         Serializers.DefaultSerializers.TryGetValue(typeof(TValue), out var serializer)
+        //             ? serializer
+        //             : throw new YdbProducerException("The serializer is not set")
+        //     )
+        // );
     }
 }