service.rb

      def self.convert_response_to_thread_ids(response)
        result = {}
        result[:threaded_extended] = {}

        if response == nil
          result[:messages] = []
          result[:have_older_msgs] = false
        else  
          threads = []
          messages = response[:json].fetch("messages", [])
          messages.each do |m|
            thread_id = m.fetch("threadId")