diff --git a/lib/__pycache__/functions.cpython-312.pyc b/lib/__pycache__/functions.cpython-312.pyc
new file mode 100644
index 000000000..f76978b98
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diff --git a/lib/functions.py b/lib/functions.py
index 9d84754d7..b4188295a 100644
--- a/lib/functions.py
+++ b/lib/functions.py
@@ -1,16 +1,16 @@
 #!/usr/bin/env python3
 
 def greet_programmer():
-    pass
+    print("Hello, programmer!")
 
 def greet(name):
-    pass
+    print(f"Hello, {name}!")
 
 def greet_with_default(name="programmer"):
-    pass
+    print(f"Hello, {name}!")
 
 def add(num1, num2):
-    pass
+  return num1 + num2
 
 def halve(number):
-    pass
+    return number/2
diff --git a/lib/testing/__pycache__/conftest.cpython-312-pytest-7.2.1.pyc b/lib/testing/__pycache__/conftest.cpython-312-pytest-7.2.1.pyc
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index 000000000..6ead03623
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