Any Approach to use AckMan inside an Asp.Net Core process.

I need to make a Response for an Action on asp.net core Web API where i get an EDI file and need to response with a generated ack 999, but AckMan has an Event base workflow and i need to wait for 999 created before make the response.

Threre is an async version of AckMan in order to not use TaskCompletionSource?