What to Know: today I talk about why I pick -˃ int for return values for main functions instead of -˃ None (which works)! today we go over narrowings and `TypeGuard` -- which enables you to write your own user-defined narrowings!

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today I talk about why I pick -˃ int for return values for main functions instead of -˃ None (which works)! today we go over narrowings and `TypeGuard` -- which enables you to write your own user-defined narrowings!

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  • today I talk about why I pick -˃ int for return values for main functions instead of -˃ None (which works)!
  • today we go over narrowings and `TypeGuard` -- which enables you to write your own user-defined narrowings!

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