Help to change Lua script in Autoit

changeregaddress= 0x004F01B6 --Addres 
debug_removeBreakpoint(changeregaddress) 

function debugger_onBreakpoint()
  if (EIP == changeregaddress) then
    hasChangedARegister=true
    EDX=20000 --EDX change
    changedEDX=true

    debug_continueFromBreakpoint(0) --Avvia

    return 1
  else
    return 0 
  end
end


debug_setBreakpoint(changeregaddress)