def max(self, property):
        """Getting the maximum value from the prepared data

        :@param property
        :@type property: string

        :@return object
        :@throws KeyError
        """
        self.__prepare()
        try:
            return max(self._json_data, key=lambda x: x[property]).get(property)
        except KeyError:
            raise KeyError("Key is not exists")
Getting the maximum value from the prepared data

        :@param property
        :@type property: string

        :@return object
        :@throws KeyError