diff --git a/pkgs/myintercom-doorbell/myintercom_doorbell/connection.py b/pkgs/myintercom-doorbell/myintercom_doorbell/connection.py
index 12767ea..a5e968e 100644
--- a/pkgs/myintercom-doorbell/myintercom_doorbell/connection.py
+++ b/pkgs/myintercom-doorbell/myintercom_doorbell/connection.py
@@ -13,9 +13,15 @@ from time import sleep
 @dataclass(frozen=True)
 class types_struct:
     uuid: bytes = b"\x01"  # Message payload contains UUID set in Asterisk Dialplan
-    audio: bytes = b"\x10"  # * Message payload contains 8Khz 16-bit mono LE PCM audio (* See Github readme)
-    silence: bytes = b"\x02"  # Message payload contains silence (I've never seen this occur personally)
-    hangup: bytes = b"\x00"  # Tell Asterisk to hangup the call (This doesn't appear to ever be sent from Asterisk to us)
+    audio: bytes = (
+        b"\x10"  # * Message payload contains 8Khz 16-bit mono LE PCM audio (* See Github readme)
+    )
+    silence: bytes = (
+        b"\x02"  # Message payload contains silence (I've never seen this occur personally)
+    )
+    hangup: bytes = (
+        b"\x00"  # Tell Asterisk to hangup the call (This doesn't appear to ever be sent from Asterisk to us)
+    )
     error: bytes = b"\xff"  # Message payload contains an error from Asterisk