added ScanConnection defintion

[ci]

Signed-off-by: Pasindu Tennage <pasindu.tennage@digitalasset.com>

Author: pasindutennage-da

apps/scan/src/main/scala/org/lfdecentralizedtrust/splice/scan/admin/api/client/ScanConnection.scala

@@ -22,6 +22,7 @@ import org.lfdecentralizedtrust.splice.environment.*
 import org.lfdecentralizedtrust.splice.http.HttpClient
 import org.lfdecentralizedtrust.splice.http.v0.definitions.{
   GetDsoInfoResponse,
+  HoldingsSummaryResponse,
   LookupTransferCommandStatusResponse,
   MigrationSchedule,
 }
@@ -35,14 +36,15 @@ import com.digitalasset.canton.data.CantonTimestamp
 import com.digitalasset.canton.lifecycle.FlagCloseableAsync
 import com.digitalasset.canton.logging.{NamedLoggerFactory, TracedLogger}
 import com.digitalasset.canton.time.Clock
-import com.digitalasset.canton.topology.{SynchronizerId, PartyId}
+import com.digitalasset.canton.topology.{PartyId, SynchronizerId}
 import com.digitalasset.canton.tracing.TraceContext
 import io.grpc.Status
 import org.apache.pekko.stream.Materializer
 import org.lfdecentralizedtrust.splice.codegen.java.splice.dsorules.{
   DsoRules_CloseVoteRequestResult,
   VoteRequest,
 }
+import org.lfdecentralizedtrust.splice.http.v0.definitions.HoldingsSummaryRequest.RecordTimeMatch
 
 import scala.concurrent.{ExecutionContext, ExecutionContextExecutor, Future}
 import scala.jdk.OptionConverters.*
@@ -75,6 +77,14 @@ trait ScanConnection
       logger,
     )
 
+  def getHoldingsSummaryAt(
+      at: CantonTimestamp,
+      migrationId: Long,
+      ownerPartyIds: Vector[PartyId],
+      recordTimeMatch: Option[RecordTimeMatch],
+      asOfRound: Option[Long],
+  )(implicit tc: TraceContext): Future[Option[HoldingsSummaryResponse]]
+
   def getAmuletRulesWithState()(implicit
       ec: ExecutionContext,
       tc: TraceContext,