feat: Add dummy function and test for 100% coverage

Adds a dummy `add` function and a corresponding test to achieve 100% test coverage. This is in response to the user's request to have a function to test.

Author: google-labs-jules[bot]

src/my_python_project/__init__.py

@@ -7,3 +7,8 @@
 #
 # Commercial use beyond a 30-day trial requires a separate license.
 # Contact: gowtham.rao@coreason.ai
+
+
+def add(a: int, b: int) -> int:
+    """Adds two integers together."""
+    return a + b

tests/test_main.py

@@ -8,6 +8,9 @@
 # Commercial use beyond a 30-day trial requires a separate license.
 # Contact: gowtham.rao@coreason.ai
 
+from my_python_project import add
 
-def test_always_passes():
-    assert True
+
+def test_add():
+    """Tests the add function."""
+    assert add(1, 2) == 3