Storage get count

[PreciousEzeigbo]

A method to retrieve one object:

Prototype: def get(self, cls, id):
    cls: class
    id: string representing the object ID
Returns the object based on the class and its ID, or None if not found

A method to count the number of objects in storage:

Prototype: def count(self, cls=None):
    cls: class (optional)
Returns the number of objects in storage matching the given class. If no class is passed, returns the count of all objects in storage.