From 6ba8d8665530a963d6b32cb0e4bde99137ad3f8a Mon Sep 17 00:00:00 2001
From: Tobias Wochinger <t.wochinger@rasa.com>
Date: Fri, 20 Mar 2020 10:09:36 +0100
Subject: [PATCH] remove wrong 'Optional' type

Co-Authored-By: ricwo <ric.wkr@gmail.com>
---
 rasa/server.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rasa/server.py b/rasa/server.py
index 16d66cf47883..c54fde6bfbf4 100644
--- a/rasa/server.py
+++ b/rasa/server.py
@@ -214,7 +214,7 @@ def event_verbosity_parameter(
 
 async def get_tracker(
     processor: "MessageProcessor", conversation_id: Text
-) -> Optional[DialogueStateTracker]:
+) -> DialogueStateTracker:
     """Get tracker object from `MessageProcessor`."""
     tracker = await processor.get_tracker_with_session_start(conversation_id)
     _validate_tracker(tracker, conversation_id)