return medium

        Keyword Arguments:
            lower {[type]} -- [description] (default: {200000})
            higher {[type]} -- [description] (default: {1000000})

        Returns:
            [type] -- [description]

def get_medium_order(self, lower=200000, higher=1000000):
        """return medium

        Keyword Arguments:
            lower {[type]} -- [description] (default: {200000})
            higher {[type]} -- [description] (default: {1000000})

        Returns:
            [type] -- [description]
        """

        return self.data.query('amount>={}'.format(lower)).query('amount<={}'.format(higher))