fix

Author: KirillKurdyukov

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

@@ -35,7 +35,7 @@ public static class Deserializers
     /// </remarks>
     public static IDeserializer<byte[]> ByteArray = new ByteArrayDeserializer();
 
-    internal static readonly Dictionary<System.Type, object> DefaultSerializers = new()
+    internal static readonly Dictionary<System.Type, object> DefaultDeserializers = new()
     {
         { typeof(int), Int32 },
         { typeof(long), Int64 },

src/Ydb.Sdk/src/Services/Topic/Reader/ReaderBuilder.cs

@@ -19,7 +19,7 @@ public async Task<IReader<TValue>> Build()
             _driver,
             _config,
             Deserializer ?? (IDeserializer<TValue>)(
-                Deserializers.DefaultSerializers.TryGetValue(typeof(TValue), out var deserializer)
+                Deserializers.DefaultDeserializers.TryGetValue(typeof(TValue), out var deserializer)
                     ? deserializer
                     : throw new YdbWriterException("The serializer is not set")
             )