pub trait GroupEngineFactory:
Send
+ Sync
+ 'static {
// Required method
fn create<'a>(
&'a self,
placement: ShardPlacement,
metrics: GroupEngineMetrics,
) -> GroupEngineCreateFuture<'a>;
}pub trait GroupEngineFactory:
Send
+ Sync
+ 'static {
// Required method
fn create<'a>(
&'a self,
placement: ShardPlacement,
metrics: GroupEngineMetrics,
) -> GroupEngineCreateFuture<'a>;
}