pub trait Provider:
Send
+ Sync
+ 'static {
type Ref: Resolvable;
// Required method
fn provide<'life0, 'life1, 'async_trait>(
&'life0 self,
resolver: &'life1 ResolverRef,
) -> Pin<Box<dyn Future<Output = ProvideResult<Self::Ref>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}