Why this is wrong in this program


Hello @kumarpratikkant,
In dunders we use double underscores.
Double leading and trailing underscores are used to define special universal class methods called dunder methods (short for Double Underscore methods).
dunders

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sir, I have used the same code but still getting error

Hello @kumarpratikkant,
Use double underscore ___lshift ___ .

sorry sir,
i was using 1shift instead of lshift