How can I display a name of a foreign key for the title of features in Django Serializer and React

The problem with my code is that it repeats the name of the property title for each object whose foreign key is in the product property model in a loop.I want the attribute_title():"Memory" field to be repeated only onceresult in react redux to be same :

PivotSerialize:attribute_id(pin):1product_id(pin):1attribute_name(pin):"ظرفیتحافظه"val(pin):"256"attribute_title(pin):"حافظه"attr_title_id(pin):"1"

I want the attribute_title():"حافظه" field to be repeated only once

my model is:

class AttributeTitle(models.Model):    attribute_title_id = models.BigAutoField(primary_key=True, editable=False)    title = models.CharField(max_length=100, unique=True)class Attribute(models.Model):    attribute_id = models.BigAutoField(primary_key=True, editable=False)    attr_title = models.ForeignKey(AttributeTitle,                                   on_delete=models.CASCADE, null=True, related_name='attribute_model_related_name')    attr_name = models.CharField(max_length=100)class ProductAttribute(models.Model):    p_a_id = models.BigAutoField(primary_key=True, editable=False)    product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name='product_attribute')    attribute = models.ForeignKey(Attribute, on_delete=models.CASCADE)    value = models.CharField(max_length=100, null=True, blank=True)

my Serializer api is:

class ProductSerializer(serializers.ModelSerializer):    category = serializers.SerializerMethodField(read_only=True)    brands = serializers.SerializerMethodField(read_only=True)    photos = serializers.SerializerMethodField(read_only=True)    color = serializers.SerializerMethodField(read_only=True)    productAttribute = serializers.SerializerMethodField(read_only=True)    class Meta:        model = Product        fields = '__all__'    def get_category(self, obj):        category = obj.category        serializers = CategorySerializer(category, many=False).data        return serializers    def get_brands(self, obj):        brands = obj.brand        serializers = BrandsSerializer(brands, many=False).data        return serializers    def get_photos(self, obj):        photos = obj.product_images        serializers = ProductPhotosSerializer(photos, many=True).data        return serializers    def get_color(self, obj):        color = obj.product_color  # ProductColor.objects.filter(product_id=obj._id)        serializers = ProductColorSerializer(color, many=True).data        return serializers    def get_productAttribute(self, obj):        attribute = obj.product_attribute  # related_name='product_attribute' in ProductAttribute model        serializers = PivotSerializer(attribute, many=True).data        return serializersclass PivotSerializer(serializers.ModelSerializer):    attribute_name = serializers.SerializerMethodField(read_only=True)    attribute_title = serializers.SerializerMethodField(read_only=True)    val = serializers.SerializerMethodField(read_only=True)    attr_title_id = serializers.SerializerMethodField(read_only=True)    class Meta:        model = ProductAttribute        fields = ['attribute_id', 'product_id', 'attribute_name', 'val', 'attribute_title', 'attr_title_id']    def get_attr_title_id(self, obj):        attr = obj.attribute.attr_title.pk        return str(attr)    def get_attribute_name(self, obj):        attr = obj.attribute        return str(attr)    def get_attribute_title(self, obj):        res = obj.attribute.attr_title        return str(res)    def get_val(self, obj):        res = obj.value        return str(res)