How to specify a func type argument to the actor when using the dfx to upgrade a canister?

Developers
1

in argument file, how to specify a callback funciton

(
    record { 
        ...... 
        autoScalingHook = <How to describe the specify function on specify canister_id here> 
    }
}
2 
(
    record { 
        ... 
        autoScalingHook = func "canister_id".<method>
    }
)

I.e. func “aaaaa-aa”.test

3

thanks a lot. it works.