fix: deaf/undeaf as CallManager members

call_manager.py

@@ -20,14 +20,6 @@ def exec_mumble(deaf: bool):
     )
 
 
-def deaf_mumble():
-    exec_mumble(True)
-
-
-def undeaf_mumble():
-    exec_mumble(False)
-
-
 class CallManager:
     def __init__(self, config):
         self.config = config
@@ -74,3 +66,9 @@ class CallManager:
             response = s.recv(1024)
             print("Hang notify sent", "response=", response.decode())
             s.close()
+
+    def deaf_mumble():
+        exec_mumble(True)
+
+    def undeaf_mumble():
+        exec_mumble(False)