(self, item: ClusterGraphicsItem)
return item in self._selection
Is `item` selected (is a root of a selection).
Is `item` selected (is a root of a selection).
Is item selected ( is a root of a selection ) .
def isItemSelected(self, item: ClusterGraphicsItem) -> bool:
        """Is `item` selected (is a root of a selection)."""
        return item in self._selection
def isItemSelected ( self , item : ClusterGraphicsItem ) -> bool : return item in self . _selection