Creates a new filter using the given match_func to filter items.
Returns this, for use in with statements.
Sets the function used for filtering items.
Returns this, for use in with statements.
Notifies all users of the filter that it has changed.
Gets the known strictness of filters.
Checks if the given item is matched by the filter or not.
Connect to Changed signal.
gtk.custom_filter.CustomFilter determines whether to include items with a callback.