added logger

app/models/transaction.py

@@ -6,6 +6,10 @@ from sqlalchemy import and_, or_, not_
 from sqlalchemy.sql import func
 from app.api.enums import TransactionType
 
+import logging
+logger = logging.getLogger(__name__)
+
+
 
 class Transaction(db.Model):
     __tablename__ = 'transactions'