Function with_get_post_fetch 

pub fn with_get_post_fetch<T>(
    renderable: T,
) -> impl TypeRenderable<Get = T::Get, PostIn = T::PostIn, PostOut = T::PostOut, FetchIn = T::FetchIn, FetchOut = T::FetchOut, IPatch = (), Put = ()>
where
    T: GetRenderable + PostRenderable + FetchRenderable,