| """Lightweight placeholder for geometry module used by legacy tests. | |
| This file provides minimal stubs so unit tests that import `geometry` can run | |
| in the demo environment. Replace with the project's real geometry module as needed. | |
| """ | |
| def distance(a, b): | |
| return 0.0 | |
| def area_of_triangle(a, b, c): | |
| return 0.0 | |