Add a basic runtime test for the python-cloudpickle package.
This test verifies the fundamental serialization capabilities of the
library by:
- Importing `cloudpickle`.
- Defining a simple Python function (fibonacci).
- Using `cloudpickle.dumps()` to serialize this function.
Signed-off-by: Xukai Wang <kingxukai@zohomail.com>
[Julien: fix flake8 warnings to fix check-package errors]
Signed-off-by: Julien Olivain <ju.o@free.fr>
