what is methos __class__ in python code example

Example: python __class__

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class Example: 
    def __init__(self): 
        print("Instance Created") 
      
    # Defining __call__ method 
    def __call__(self): 
        print("Instance is called via special method") 
  
# Instance created 
e = Example() 
  
# __call__ method will be called 
e()