class AddressClass:

    def __init__(self, House_Number, Street_Number, State):
        self.house_number = House_Number
self.street_number = Street_Number
self.state = State


class EmployeeClass:

    def __init__(self, Name, Address):
        self.name = Name
self.address = Address
mapping = {frozenset(('House_Number', 'Street_Number', 'State')):
    AddressClass, frozenset(('Name', 'Address')): EmployeeClass}
How to load JSON data into nested classes?