be raised when saving and loading these classes/instances.
It is very likely the same class stored in different objects becomes different
environments."><meta property="og:description" content="This class provides essential attributes and methods. It makes
the assumption that the container name is ..method_env.. and the name of
the reference to self is self. If you would like to use other container
names and self names, you need to overwrite the class definition of BASE.


The class environment is defined a