Django REST框架更改JSON结构

我正在从事Django项目，我现在拥有的数据如下：

[
        {
            "sid": "A1",
            "annofk": [
                {
                    "id": 8,
                    "chrs": "chr1",
                    "seq_start": 18262640,
                    "seq_end": 18262660,
                },
                {
                    "id": 9,
                    "chrs": "chr1",
                    "seq_start": 18262640,
                    "seq_end": 18262660,
                },
                {
                    "id": 10,
                    "chrs": "chr1",
                    "seq_start": 18262640,
                    "seq_end": 18262660,
                }
            ]
        },
        {
            "sid": "A2",
            "annofk": [
                {
                    "id": 5,
                    "chrs": "chr1",
                    "seq_start": 24613130,
                    "seq_end": 24613155,
                },
                {
                    "id": 11,
                    "chrs": "chr1",
                    "seq_start": 24613130,
                    "seq_end": 24613154,
                }
            ]
        }
    ]

我真的想把结构改成这样：

[
        {
            "sid": "A1",
            "annofk": {
                "id": 8,
                "chrs": "chr1",
                "seq_start": 18262640,
                "seq_end": 18262660,
            }
        },
        {
            "sid": "A1",
            "annofk": {
                "id": 9,
                "chrs": "chr1",
                "seq_start": 18262640,
                "seq_end": 18262660,
            }
        },
        {
            "sid": "A1",
            "annofk": {
                "id": 10,
                "chrs": "chr1",
                "seq_start": 18262640,
                "seq_end": 18262660,
            }
        },
        {
            "sid": "A2",
            "annofk": {
                "id": 5,
                "chrs": "chr1",
                "seq_start": 24613130,
                "seq_end": 24613155,
            }
        },
        {
            "sid": "A2",
            "annofk": {
                "id": 11,
                "chrs": "chr1",
                "seq_start": 24613130,
                "seq_end": 24613154,
            }
        }
    ]

这些数据来自两个表（模型）。这些数据来自反向查找结果。这里有两个序列化程序：

class AnnotationSerializer(serializers.ModelSerializer):
    class Meta:
        model = annotation
        fields = "__all__"

class SeqSerializer(serializers.ModelSerializer):
    annofk = AnnotationSerializer(many=True)
    class Meta:
        model = sequence
        fields = ('sid','annofk')

模型如下：

class sequence(models.Model):
    sid     = models.CharField(max_length=50)
    class Meta:
        db_table = "sequence_table" 

class annotation(models.Model):
    chrs       = models.CharField(max_length=100)
    seq_start  = models.IntegerField(null=True,blank=True)
    seq_end = models.IntegerField(null=True,blank=True)
    fk       = models.ForeignKey("sequence",on_delete=models.CASCADE,null=True,blank=True,related_name='annofk')
    isDelete   = models.BooleanField(default=False)
    class Meta:
        db_table = "annotation_table"

我尝试重新编写to_表示（），但没有找到方法。有什么简单的方法可以改变数据结构吗？是否使用SerializerMethodField（）？

---

任何建议都将不胜感激。

实际上，我有三个表（模型），第三个表也是与序列表的一对一关系。我使用

prefetch\u related

根据第三个表中的值过滤序列对象。现在我想把数据放到一个datatable中，这就是为什么我想改变数据的结构。