feat: refactor: add db add assert to unit test for original save_document_with_dataset_id

api/tests/unit_tests/services/test_document_service_save_document_with_dataset_id.py

@@ -3,7 +3,6 @@ from unittest.mock import Mock, patch
 
 import pytest
 
-from models import DatasetProcessRule
 from models.account import Account
 from models.dataset import Dataset, Document
 from services.dataset_service import DocumentService