add append method

src/superqt/utils/_misc.py

@@ -74,7 +74,7 @@ def _store_connection(*args, **kwargs):
             # perform the connection
             connection = CONNECT(*args, **kwargs)
             # store the connection for later disconnection
-            self._connections.append(connection)
+            self.append(connection)
             return connection
 
         # create a patcher for SignalInstance.connect
@@ -92,6 +92,10 @@ def __exit__(self, *args: Any) -> None:
     def __len__(self) -> int:
         return len(self._connections)
 
+    def append(self, connection: QMetaObject.Connection) -> None:
+        """Manually store a connection."""
+        self._connections.append(connection)
+
     def disconnect(self) -> None:
         """Disconnect all connections stored in this token."""
         while self._connections: