diff --git a/pympipool/shared/__init__.py b/pympipool/shared/__init__.py
index 9e765c95..73fadf43 100644
--- a/pympipool/shared/__init__.py
+++ b/pympipool/shared/__init__.py
@@ -1,5 +1,6 @@
 from pympipool.shared.communication import (
     SocketInterface,
+    interface_bootup,
     interface_connect,
     interface_send,
     interface_shutdown,
@@ -7,3 +8,4 @@
 )
 from pympipool.shared.executorbase import cancel_items_in_queue
 from pympipool.shared.thread import RaisingThread
+from pympipool.shared.interface import MpiExecInterface, SlurmSubprocessInterface