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-rwxr-xr-x[-rw-r--r--]src/cost.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cost.py b/src/cost.py
index 0f00253..0f0743b 100644..100755
--- a/src/cost.py
+++ b/src/cost.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3.7
+
from model import Model