code: def subscribers(date="", page=1, page_size=1000, order_field="email",
        order_direction="asc", include_tracking_preference=false)
        options = { :query => {
          :date => date,
          :page => page,
          :pagesize => page_size,
          :orderfield => order_field,
          :orderdirection => order_direction,
          :includetrackingpreference => include_tracking_preference } }
        response = get "active", options
        Hashie::Mash.new(response)
      end
docs: Gets the active subscribers in this segment.