Async/await equivalent of saving a completion block of a method

I have a function in a NetworkManager class which loads an object Bar and returns it in a completion block. If my app is in the background, I save the completion block in a class FooManager like this:

func getBar(
  withRequestId requestId: String,
  completion: (Bar) -> Void
) {
  let applicationState = UIApplication.shared.applicationState
  if applicationState == .background {
    let request = BarRequest(
      id: requestId,
      completion: completion
    )
    fooManager.request = request
    return
  }
  ...
}

Then, in FooManager when the applicationDidBecomeActive notification is received, I call the function again and pass in the completion handler, such that the original request can complete and return back to the caller:

func applicationDidBecomeActive() {
  guard let request else {
    return
  }
  network.getBar(
    withRequestId: request.id,
    completion: request.completion
  )
  self.request = nil
}

This works well. However, I'm now converting this function to async but I can't figure out how to do the equivalent of this without a completion block to save.

func getBar(withRequestId requestId: String,) async throws -> Config {
  let applicationState = UIApplication.shared.applicationState
  if applicationState == .background {
    let configRequest = ConfigRequest(
      id: requestId,
      completion: completion // Can't do this now
    )
    configManager.configRequest = configRequest
    return
  }
  ...
}

How can I do this, or something that's equivalent to this?