#as - it is used to create an  alias while importing a module and it gives a different name(user-defined) to a module while importing it
#assert - it is used for debugging process and to know about internal state and to know our assumptions True or False
#asserrtion error- which gives more clarity about error and we can add personal message to know about it
#async,await- both keywords are provided by asyncio library in python
  to run asyncio- asyncio.run(main())
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