From 23a0721d8d2a23a68089f8335d8242dd948f2f9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BE=9D=E7=91=AA=E8=B2=93?= <imacat@mail.imacat.idv.tw>
Date: Wed, 15 Mar 2023 23:23:01 +0800
Subject: [PATCH] Added assert in the be function in the
 "accounting.utils.cast" module, to insure the correctness of the expression
 received.

---
 src/accounting/utils/cast.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/accounting/utils/cast.py b/src/accounting/utils/cast.py
index 0908b65..86a0e46 100644
--- a/src/accounting/utils/cast.py
+++ b/src/accounting/utils/cast.py
@@ -31,6 +31,7 @@ def be(expression: t.Any) -> sa.BinaryExpression:
     :param expression: The binary expression.
     :return: The binary expression itself.
     """
+    assert isinstance(expression, sa.BinaryExpression)
     return expression