subscribe(colors, "hue", handleEvent)
subscribe(colors, "saturation", handleEvent)
subscribe(colors, "color", handleEvent)
subscribe(consumables, "consumableStatus", handleEvent)
subscribe(contacts, "contact", handleEvent)
subscribe(colors, "hue", handleEvent)
subscribe(colors, "saturation", handleEvent)
subscribe(colors, "color", handleEvent)
subscribe(consumables, "consumableStatus", handleEvent)
subscribe(contacts, "contact", handleEvent)