pub trait NodeManagerCreator {
// Required method
fn create<'life0, 'life1, 'async_trait>(
&'life0 self,
kv_backend: &'life1 KvBackendRef,
region_server: RegionServer,
flow_server: FlownodeRef,
) -> Pin<Box<dyn Future<Output = Result<NodeManagerRef>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}