chore: reorg imports (#35308)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tasks/batch_create_segment_to_index_task.py

@@ -8,7 +8,6 @@ from typing import Any
 import click
 import pandas as pd
 from celery import shared_task
-from graphon.model_runtime.entities.model_entities import ModelType
 from sqlalchemy import func, select
 
 from core.db.session_factory import session_factory
@@ -16,6 +15,7 @@ from core.model_manager import ModelManager
 from core.rag.index_processor.constant.index_type import IndexStructureType, IndexTechniqueType
 from extensions.ext_redis import redis_client
 from extensions.ext_storage import storage
+from graphon.model_runtime.entities.model_entities import ModelType
 from libs import helper
 from libs.datetime_utils import naive_utc_now
 from models.dataset import Dataset, Document, DocumentSegment