[#3] Move to netstandard 2.0

Signed-off-by: Pavel Gross <p.gross@yadro.com>

src/FrostFS.SDK.ClientV2/Services/SearchReader.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+using Grpc.Core;
+
+using FrostFS.Object;
+using FrostFS.Refs;
+
+namespace FrostFS.SDK.ClientV2;
+
+internal class SearchReader(AsyncServerStreamingCall<SearchResponse> call) : IDisposable
+{
+    public AsyncServerStreamingCall<SearchResponse> Call { get; private set; } = call;
+
+    public async Task<List<ObjectID>?> Read()
+    {
+        if (!await Call.ResponseStream.MoveNext())
+        {
+            return null;
+        }
+
+        var response = Call.ResponseStream.Current;
+        Verifier.CheckResponse(response);
+
+        return response.Body?.IdList.ToList();
+    }
+
+    public void Dispose()
+    {
+        Call.Dispose();
+    }
+}