tool functions and pytest

utils.py

@@ -0,0 +1,11 @@
+import json
+import sys
+
+def load_json_file(filepath: str) -> any:
+    with open(filepath, "r") as f:
+        return json.load(f)
+
+
+
+def print_error(*args, **kwargs):
+     print(*args, file=sys.stderr, **kwargs)