text: from typing import Any
  
  
  class Singleton:
      """
      A Singleton Class
      """
  
      __instance = None
  
      @staticmethod
      def get_instance() -> Any:
          """Get a static instance of the derived class."""
          if Singleton.__instance is None:
              Singleton()
          return Singleton.__instance
  
      def __init__(self) -> None:
          if Singleton.__instance is None:
              Singleton.__instance = self
  