update

app/api/services/transaction.py

@@ -1,5 +1,4 @@
 from flask import jsonify
-from marshmallow import ValidationError
 from app.utils.logger import logger
 from app.api.services.base_service import BaseService
 from app.models.transaction import Transaction
@@ -62,7 +61,6 @@ class TransactionService(BaseService):
                 'count': len(transactions_data)
             }
 
-
             return response_data
 
         except Exception as e: