Add missing init

Author: brunorijsman

hub/hub.py

@@ -38,6 +38,7 @@ def __init__(self, name: str, share_timeout_secs: int):
         self._share_timeout_secs = share_timeout_secs
         self._peer_clients = {}
         self._shares = {}
+        self._share_timeout_tasks = {}
         self._stop_task = None
 
     @property