Sending messages to Elmish update on the server locally

[artcoed]

On my server there is logic that works in parallel with the websocket Elmsih update. I found a method that allows you to get models of connected users:
connections.GetModels()
However, I can't find a method to send a message to the Elmish update
The following method is not suitable due to the fact that the message sent to it can also be sent from the client
connections.BroadcastServer (Inner Test)
The client has the following option
Bridge.Send (Inner Test)