# Copyright (C) 2024 Jaehak Lee
# This file is part of matform.

class MetaSingleton(type):
    _instances={}
    def __call__(cls, *args, **kwargs):
        if cls not in cls._instances:
            cls._instances[cls] = super(MetaSingleton,cls).__call__(*args, **kwargs)
        return cls._instances[cls]

