public virtual ModifySnapshotCopyRetentionPeriodResponse ModifySnapshotCopyRetentionPeriod(ModifySnapshotCopyRetentionPeriodRequest request){var options = new InvokeOptions();options.RequestMarshaller = ModifySnapshotCopyRetentionPeriodRequestMarshaller.Instance;options.ResponseUnmarshaller = ModifySnapshotCopyRetentionPeriodResponseUnmarshaller.Instance;return Invoke<ModifySnapshotCopyRetentionPeriodResponse>(request, options);}