Review suggestion

Author: MBkkt

ydb/core/tx/datashard/build_index.cpp

@@ -388,13 +388,13 @@ class TBuildScanUpload: public TActor<TBuildScanUpload<Activity>>, public NTable
         LOG_D("Upload, last key " << DebugPrintPoint(KeyTypes, WriteBuf.GetLastKey().GetCells(), *AppData()->TypeRegistry) << " " << Debug());
 
         auto actor = NTxProxy::CreateUploadRowsInternal(
-            TBase::SelfId(), TargetTable,
+            this->SelfId(), TargetTable,
             UploadColumnsTypes,
             WriteBuf.GetRowsData(),
             UploadMode,
             true /*writeToPrivateTable*/);
 
-        Uploader = TActivationContext::ActorContextFor(TBase::SelfId()).Register(actor);
+        Uploader = this->Register(actor);
     }
 };
 
@@ -524,7 +524,6 @@ void TDataShard::HandleSafe(TEvDataShard::TEvBuildIndexCreateRequest::TPtr& ev,
         return;
     }
 
-
     TScanRecord::TSeqNo seqNo = {record.GetSeqNoGeneration(), record.GetSeqNoRound()};
     auto badRequest = [&](const TString& error) {
         auto response = MakeHolder<TEvDataShard::TEvBuildIndexProgressResponse>();

ydb/core/tx/datashard/local_kmeans.cpp

@@ -508,7 +508,7 @@ class TLocalKMeansScanBase: public TActor<TLocalKMeansScanBase>, public NTable::
             NTxProxy::EUploadRowsMode::WriteToTableShadow,
             true /*writeToPrivateTable*/);
 
-        Uploader = TActivationContext::ActorContextFor(this->SelfId()).Register(actor);
+        Uploader = this->Register(actor);
     }
 
     void UploadSample() {