我有2个模型和模型ObjectList有m2m字段到CounterParty，但我需要显示从CounterParty模型按对象过滤的信息
我该怎么做？

class CounterParty(models.Model):
    name = models.CharField(max_length=150, verbose_name='Наименование')

class ObjectList(models.Model):

    name = models.CharField(max_length=250, verbose_name='Наименование')

    contractor_guid = models.ManyToManyField(CounterParty, related_name='object_contractor',default=None, blank=True)

我知道这是不正确的，但它应该看起来像这样

object = ObjectList.objects.get(id=1)
a = CounterParty.objects.filter(object_contractor=object)