Invoke AME from custom Workflow

Is it possible to invoke AME from a PLSQL package. I have a Approval group in AME which has 5 approvers within it with method as "First Responder Wins"

I am using the standard API: ame_api2.getallapprovers1

But this is sending the notification one by one to the 5 approvers. Expectation is notification should be send to all of them, and when any one of them approves then the transaction should get approved. (This the standard functionality of 'First Responder Wins')