code: def get_medium_order(self, lower=200000, higher=1000000):
          
  
          return self.data.query('amount>={}'.format(lower)).query('amount<={}'.format(higher))
docs: return medium
  
          Keyword Arguments:
              lower {[type]} -- [description] (default: {200000})
              higher {[type]} -- [description] (default: {1000000})
  
          Returns:
              [type] -- [description]