def get_inlines(self, obj):
        """
        Some plugin can store data in related models
        This method supposed to fetch data from database for all inline models listed in inlines parameter of plugin
        prepare and return together with parent object
        :param obj:
        :return:
        """
        plugin = obj.get_plugin_class()
        inlines = getattr(plugin, 'inlines', [])
        data = {}
        for inline in inlines:
            for related_object in obj._meta.related_objects:
                if getattr(related_object, 'related_model', None) == inline.model:
                    name = related_object.name
                    serializer = get_serializer(
                        getattr(obj, name).all(), model=inline.model, many=True, context=self.context)
                    data[name] = serializer.data
                    break
        return data
Some plugin can store data in related models
        This method supposed to fetch data from database for all inline models listed in inlines parameter of plugin
        prepare and return together with parent object
        :param obj:
        :return: