code: def init_all_receivers():
      
      receivers = discover()
  
      init_receivers = []
      for receiver in receivers:
          init_receiver = DenonAVR(receiver["host"])
          init_receivers.append(init_receiver)
      return init_receivers
docs: Initialize all discovered Denon AVR receivers in LAN zone.
  
      Returns a list of created Denon AVR instances.
      By default SSDP broadcasts are sent up to 3 times with a 2 seconds timeout.