Index: leahi_dialin/td/modules/pressure_sensors.py
===================================================================
diff -u -r21a1d644c7d02e7588781b9025b422aa9d74c9ca -rf03c9a32180573f2430105ad69eb91d9f597a96b
--- leahi_dialin/td/modules/pressure_sensors.py	(.../pressure_sensors.py)	(revision 21a1d644c7d02e7588781b9025b422aa9d74c9ca)
+++ leahi_dialin/td/modules/pressure_sensors.py	(.../pressure_sensors.py)	(revision f03c9a32180573f2430105ad69eb91d9f597a96b)
@@ -22,8 +22,9 @@
 from leahi_dialin.common.override_templates import cmd_generic_broadcast_interval_override, cmd_generic_override
 from leahi_dialin.common import td_enum_repository
 
-from leahi_dialin.protocols.CAN import DenaliChannels
-from leahi_dialin.utils.base import AbstractSubSystem, publish
+from leahi_dialin.protocols.CAN import DenaliCanMessenger, DenaliChannels
+from leahi_dialin.utils.abstract_classes import AbstractSubSystem
+from leahi_dialin.utils.base import publish
 from leahi_dialin.utils.conversions import integer_to_bytearray, float_to_bytearray
 
 
@@ -32,7 +33,7 @@
     Treatment Delivery (TD) Dialin API sub-class for pressure related commands.
     """
 
-    def __init__(self, can_interface, logger: Logger):
+    def __init__(self, can_interface: DenaliCanMessenger, logger: Logger):
         """
         TDPressureSensors constructor
         """