• Expression Stack at time t = [ [ ], [ [ Python constructor with name: class_name and arguments: args, ys ], rest ] ]
• Function Variables Map at time t = [ ]
• Parameters List at time t = [ self, p_rest ]

then Python Object Store at time (t + 1) = result of appending (Python object: [ entry "__class_name__": class_name, [ ] ]) to (Python Object Store at time t)