pub trait IsAsyncMeta {
// Required methods
fn as_raw_meta<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = RawResult<RawMeta>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
fn as_json_meta<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = RawResult<JsonMeta>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
}