Update objects that match a given selector with the specified
        attribute/value updates.

        Args:
            selector (JSON-like) :
            updates (dict) :

        Returns:
            None

def set_select(self, selector, updates):
        ''' Update objects that match a given selector with the specified
        attribute/value updates.

        Args:
            selector (JSON-like) :
            updates (dict) :

        Returns:
            None

        '''
        for obj in self.select(selector):
            for key, val in updates.items():
                setattr(obj, key, val)