Implement is iterable equivalently to the reference
Implement is iterable equivalently to the reference: a task in repo2rlenv-equivalence-tests (Harbor dataset). Implement the function is iterable in /workspace/task module.py so that it is behaviorally equivalent to reference is iterable (which is already provided in task module.py ).
The task
Implement the function `is_iterable` in `/workspace/task_module.py` so that it is behaviorally equivalent to `reference_is_iterable` (which is already provided in `task_module.py`).