text: from abc import ABC, abstractmethod
  from typing import Any, Hashable
  
  
  class ABCStorage(ABC):
      """Abstract storage class
      Documentation: https://github.com/vkbottle/vkbottle/blob/master/docs/tools/storage.md
      """
  
      @abstractmethod
      def get(self, key: Hashable) -> Any:
          pass
  
      @abstractmethod
      def set(self, key: Hashable, value: Any) -> None:
          pass
  
      @abstractmethod
      def delete(self, key: Hashable) -> None:
          pass
  
      @abstractmethod
      def contains(self, key: Hashable) -> bool:
          pass
  
      def __repr__(self):
          return f"<{self.__class__.__name__}>"
  
      def __contains__(self, item: str) -> bool:
          return self.contains(item)
  
      def __setitem__(self, key: Hashable, value: Any) -> None:
          self.set(key, value)
  
      def __getitem__(self, key: Hashable) -> Any:
          return self.get(key)
  