Test in step 13 of Password Generator project not checking for function body content

[Dario-DC]

Describe the bug
Step 13 asks to declare a function and move the existing lines of code after the imports inside it. There's only one test that checks that the function exists. Therefore, one can pass this step declaring an empty function.

To Reproduce
Steps to reproduce the behavior:

1. Go here
2. Add def generate_password(): pass
3. Run the tests

Expected behavior
def generate_password(): pass should not be enough to pass this step.
Another tests should check that the lines of code inside the editable region are inside the function body.

Additional context
ast-based helpers docs https://contribute.freecodecamp.org/#/curriculum-help?id=ast-based-helpers