Function sauron::jss::classes_namespaced_flag

pub fn classes_namespaced_flag<P, S, MSG>(
    namespace: impl ToString, 
    pair: P
) -> Attribute<&'static str, &'static str, AttributeValue, Event, MSG> where
    P: AsRef<[(S, bool)]>,
    S: ToString, 

return a class namespaced with flag