Python bool Special Method
In Python, the `__bool__` special method is used to define the truth value of instances of a class. When an object of a class implements `__bool__`, it allows the object to be evaluated in a boolean context, such as in an `if` statement or when using boolean operators like `and`, `or`, and `not`. The `__bool__` method should return `True` or `False` based on the object's state or properties. If `__bool__` is not implemented, Python falls back to checking the truth value of the object by calling its `__len__` method, if present (returning `False` for an empty container and `True` otherwise). If neither `__bool__` nor `__len__` is implemented, the object is considered to be truthy by default. Implementing `__bool__` allows for customizing the truthiness of objects, providing more control over their behavior in boolean contexts.