constructor.py

class Model:

    def __init__(self, config: dict) -> None:
        self.config = config


class Producer:

    def __new__(cls, config: dict, debug: bool):
        if debug:
            return super(Producer, cls).__new__(cls)
        else:
            return Model(config=config)

    def __init__(self, config: dict, debug: bool = True) -> None:
        self.new_queue = None

class Consumer:

    def __new__(cls, config: dict, debug: bool):
        if debug:
            return super(Consumer, cls).__new__(cls)
        else:
            return Model(config=config)

    def __init__(self, config: dict, debug: bool = True) -> None:
        self.pendding = None
        self.success = None
        self.error = None


class Buider:

    def __init__(self, config: dict, debug: bool) -> None:
        self.config = config
        self.debug = debug

        self.producer = None
        self.consumer = None
    
    def new_producer(self):
        self.producer = Producer(
            config=self.config, debug=self.debug
        )
        return self.producer

    def new_consumer(self):
        self.consumer = Consumer(
            config=self.config, debug=self.debug
        )
        return self.consumer
    

constructor = Buider(config={}, debug=True)
constructor.new_producer()
constructor.new_consumer()