text: # from urllib.parse import urlparse
  from typing import Any
  
  
  class Singleton(type):
      _instances: Any = {}
  
      def __call__(cls, *args, **kwargs):
          if cls not in cls._instances:
              cls._instances[cls] = super(Singleton, cls).__call__(
                  *args, **kwargs
              )
          return cls._instances[cls]
  