Blaze Spawner Melee Rednet

local channelProtocol = wBlazeSpawnerFarm1
rednet.open("left")
local a = true
local SLOTS = 16
print("listening on rednet")
while a==true do
  local senderID, msg = rednet.receive(channelProtocol)
  if msg=="stop" then
    a = false
    print("Clearing Inventory")
    for i = 1, SLOTS, 1 do
      turtle.select(i)
      turtle.dropDown()
    end
    print("Stopping")
    os.reboot()
  end
if msg=="start" then
  local id = multishell.launch({}, "attack")
end
end