Include

app/models/loan.py

@@ -1,6 +1,11 @@
 from datetime import datetime, timezone
 from app.extensions import db
 from sqlalchemy.orm import relationship
+from dateutil.relativedelta import relativedelta
+from datetime import timedelta
+import logging
+from sqlalchemy import and_, or_, not_
+from sqlalchemy.sql import func
 
 class Loan(db.Model):
     __tablename__ = "loans"