Let's implement password validation for your code!

1. Define the password property by the @property decorator.
2. The password property should return the _password attribute.
3. Implement the password setter by the @property.setter decorator.
   Take attention: This decorator starts from the property name (@{property_name}.setter).
4. The password should be string with a length greater than or equal to 8.
5. Use the self.password property inside the __init__() magic method
   (not a _password).