code: def repay_loan(self, order_id, amount):
          
          params = {'order-id': order_id, 'amount': amount}
          path = f'/v1/margin/orders/{order_id}/repay'
  
          def _wrapper(_func):
              @wraps(_func)
              def handle():
                  _func(api_key_post(params, path))
  
              return handle
  
          return _wrapper
docs: 归还借贷
          :param order_id:
          :param amount:
          :return: