workspaces/telepath-ios/Telepath/QueuingService.swift
public protocol QueuingService {
func send(queueId: QueueID, message: Data, completion: @escaping (Error?) -> Void)
func receive(queueId: QueueID, completion: @escaping (Data?, Error?) -> Void)
mutating func invalidate()
}
public typealias QueueID = String