diff --git a/python_models8/connectors/my_connector.py b/python_models8/connectors/my_connector.py
index ee6a492..f39670c 100644
--- a/python_models8/connectors/my_connector.py
+++ b/python_models8/connectors/my_connector.py
@@ -32,13 +32,15 @@ def __init__(self, weights=0.0, delays=1, allow_self_connections=True
         # TODO: Store any additional parameters
 
     @overrides(AbstractConnector.get_delay_maximum)
-    def get_delay_maximum(self, synapse_info):
+    def get_delay_maximum(
+            self, synapse_info: SynapseInformation) -> Optional[float]:
         # TODO call self._get_delay_maximum if needed
         return 16
 
     @overrides(AbstractConnector.get_delay_minimum)
-    def get_delay_minimum(self, synapse_info):
-        # TODO call self._get_delay_minimum if needed
+    def get_delay_minimum(
+            self, synapse_info: SynapseInformation) -> Optional[float]:
+       # TODO call self._get_delay_minimum if needed
         return 1
 
     @overrides(AbstractGenerateConnectorOnHost.create_synaptic_block)