- from dataclasses import dataclass 
-   
- @dataclass 
- class Checker: 
-     var1: int 
-   
-     def check_var(var: int): 
-         if var in range(-100, 100): 
-             print('ok') 
-         else: 
-             print('not ok')  
-   
- v = Checker(var1=101) 
- v.check_var() 
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