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-rw-r--r--interpreter.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/interpreter.py b/interpreter.py
index 167e428..1d6a132 100644
--- a/interpreter.py
+++ b/interpreter.py
@@ -1136,6 +1136,7 @@ class Interpreter():
mlog.debug('Adding test "', mlog.bold(args[0]), '".', sep='')
def func_headers(self, node, args, kwargs):
+ args = self.flatten(args)
for a in args:
if not isinstance(a, str):
raise InvalidArguments('Argument %s is not a string.' % str(a))