Index: dialin/dg/fluid_leak.py
===================================================================
diff -u -r33e3f9f462c34f5ac8f8319dc3fada668b829190 -r5e7404aa3f3a630e3d831643a4c7e91769d387ea
--- dialin/dg/fluid_leak.py	(.../fluid_leak.py)	(revision 33e3f9f462c34f5ac8f8319dc3fada668b829190)
+++ dialin/dg/fluid_leak.py	(.../fluid_leak.py)	(revision 5e7404aa3f3a630e3d831643a4c7e91769d387ea)
@@ -59,7 +59,7 @@
         return self.fluid_leak_state
 
     @_publish(["fluid_leak_state"])
-    def _handler_fluid_leak_sync(self, message):
+    def _handler_fluid_leak_sync(self, message: dict) -> None:
         """
         Handles published fluid leak state messages.  Fluid leak state is captured
         for reference.
@@ -73,7 +73,7 @@
 
         self.fluid_leak_state = state[0]
 
-    def cmd_fluid_leak_detector_override(self, detected, reset=NO_RESET):
+    def cmd_fluid_leak_detector_override(self, detected: int, reset: int = NO_RESET) -> int:
         """
         Constructs and sends the fluid leak detector state override command
         Constraints:
Index: dialin/hd/ui_proxy.py
===================================================================
diff -u -r46ebf93d3666db40f25ad1e9170426853aa845d4 -r5e7404aa3f3a630e3d831643a4c7e91769d387ea
--- dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 46ebf93d3666db40f25ad1e9170426853aa845d4)
+++ dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 5e7404aa3f3a630e3d831643a4c7e91769d387ea)
@@ -1024,11 +1024,11 @@
         if RequestRejectReasons.has_value(rea[0]):
             self.treatment_end_cmd_reject_reason = RequestRejectReasons(rea[0])
 
-    def cmd_ui_checkin_with_hd(self) -> int:
+    def cmd_ui_checkin_with_hd(self) -> None:
         """
         Constructs and sends the ui check-in message
 
-        @return: 0
+        @return: None
         """
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id,
@@ -1038,8 +1038,6 @@
 
         self.can_interface.send(message, 0)
 
-        return 0
-
     def cmd_ui_request_hd_version(self) -> None:
         """
         Constructs and sends the ui request for version message
Index: tests/peter/set_RTCs.py
===================================================================
diff -u -rbfb0c47181dc8a73d09825ab697a7799dd520417 -r5e7404aa3f3a630e3d831643a4c7e91769d387ea
--- tests/peter/set_RTCs.py	(.../set_RTCs.py)	(revision bfb0c47181dc8a73d09825ab697a7799dd520417)
+++ tests/peter/set_RTCs.py	(.../set_RTCs.py)	(revision 5e7404aa3f3a630e3d831643a4c7e91769d387ea)
@@ -15,7 +15,7 @@
 ############################################################################
 
 import sys
-sys.path.append("..")
+sys.path.append("../../")
 from dialin.hd.hemodialysis_device import HD
 from dialin.dg.dialysate_generator import DG
 from time import time