class Heure:
    def __init__(self, h, m, s):
        ...
        self.s = ...
        self.m = ...
        self.h = ...
    
    def __repr__(self):
        return f"Heure({...}, {...}, {...})"
    
    def __str__(self):
        return ...
    
    def avance(self, s):
        ...

class Heure2:
    def __init__(self, h, m, s):
        self.s = ...
    
    def _conversion(self):
        ...
        
    def __repr__(self):
        ...
        return f"Heure2({...}, {...}, {...})"
    
    def __str__(self):
        return ...
    
    def avance(self, s):
        ...
        
    def __eq__(self, other):
        ...
    
    def copy(self):
        ...