capybara/virtualenv/lib/python2.7/site-packages/flask/blueprints.py
def url_defaults(self, f):
        """Callback function for URL defaults for this blueprint.  It's called
        with the endpoint and values and should update the values passed
        in place.
        """
        self.record_once(lambda s: s.app.url_default_functions
            .setdefault(self.name, []).append(f))
        return f
def url_defaults(self, f):
        self.record_once(lambda s: s.app.url_default_functions
            .setdefault(self.name, []).append(f))
        return f
def url_defaults ( self , f ) : self . record_once ( lambda s : s . app . url_default_functions . setdefault ( self . name , [ ] ) . append ( f ) ) return f
Callback function for URL defaults for this blueprint.  It's called
        with the endpoint and values and should update the values passed
        in place.
Callback function for URL defaults for this blueprint . It s called with the endpoint and values and should update the values passed in place .