Function reproto_repository::objects_from_url

pub fn objects_from_url<F>(
    config: ObjectsConfig, 
    url: &Url, 
    fallback: F, 
    publishing: bool
) -> Result<Box<Objects>> where
    F: Fn(ObjectsConfig, &str, &Url) -> Result<Option<Box<Objects>>>, 

Load objects from an URL.