How to use the catalogue.api.RecordSerializer function in catalogue

for uploaded_style in default_style.itervalues():
            uploaded_style["default"] = True

        #save  style
        styles= []
        for style_serializer in style_serializers:
            if http_status != status.HTTP_201_CREATED:
                #record is already exist,should check whether style exist or not.
                try:
                    style_serializer.instance = Style.objects.get(record=record,name=style_serializer.validated_data["name"],format=style_serializer.validated_data["format"])
                except Style.DoesNotExist:
                    pass
            styles.append(style_serializer.save())

        record.styles = styles
        serializer = RecordSerializer(record)
        return Response(serializer.data,status=http_status)

def create(self,request):
        styles_data = None
        http_status = status.HTTP_200_OK
        
        if "styles" in request.data:
            styles_data = request.data.pop("styles")
        #parse and valid record data
        serializer = RecordSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        #parse and valid styles data
        style_serializers = [StyleSerializer(data=style) for style in styles_data] if styles_data else []
        if style_serializers:
            for style_serializer in style_serializers:
                style_serializer.is_valid(raise_exception=True)
        
        #save record data.
        identifier = "{}:{}".format(serializer.validated_data['workspace'],serializer.validated_data['name'])
        try:
            serializer.instance = Record.objects.get(identifier=identifier)
            if not serializer.instance.auto_update:
                #auto update disabled
                for key in ["title","abstract","auto_update","modified","insert_date"]:
                    if key in serializer.validated_data: serializer.validated_data.pop(key)