django如何将字段序列化为DateTimeRangeField

我在将字段序列化为DateTimeRangeField时遇到了一些问题。请求当前必须具有以下格式:

data = {"time":
         {
           "lower": timeThing,
           "upper": laterTimeThing
         }
       }

我希望它在请求时是这样的:

data = {
           "start": timeThing,
           "end": laterTimeThing
       }

这样我就可以将开始/结束序列化为下/上。 这是我的模型:

class Example(models.Model):
    time = DateTimeRangeField()
    user = models.ForeignKey('user.User')

class ExampleAPI(ListCreateAPIView):
    serializer_class = ExampleSerializer
    pagination_class = None
    queryset = Example.objects.all()

    def perform_create(self, serializer):
        serializer.save(user=self.request.user)

class ExampleSerializer(serializers.ModelSerializer):
    time = DateTimeRangeField(write_only=True)
    user = serializers.ReadOnlyField(source='user.id')

    class Meta:
        model = Example
        exclude = ['user']

我试着创造一个 custom field 但它似乎没有进入到覆盖的to-u表示或to-u内部值中。我收到的错误消息是{'time':['此字段是必需的。']}