code: def delete(self, key):
          
          query = (
              "DELETE FROM {} WHERE {}=?".format(self.__tablename__, self.__key__),
              (key,),
          )
          connection = sqlite3.connect(self.sqlite_file)
          cursor = connection.cursor()
          cursor.execute(*query)
          connection.commit()
docs: Delete a key from the store
  
              :param str value: Value