human
Here's a good function header given the following:
I wrote the below code

    exercise_parents_table = get_exercise_parents_lookup_table()
    most_recent = get_most_recent_exercises(user)
    complete_exercises = set(get_completed_exercises(user))
    def filter_complete(ex):
        return (ex not in complete_exercises)
    if ((len(most_recent) > 0) and (most_recent[0] in exercise_parents_table)):
        current_subtopic = exercise_parents_table[most_recent[0]]['subtopic_id']
    else:
        current_subtopic = None
    if current_subtopic:
        topic_tree_based_data = generate_recommendation_data()[current_subtopic]['related_subtopics'][:settings.TOPIC_RECOMMENDATION_SIZE]
        topic_tree_based_data = get_exercises_from_topics(topic_tree_based_data)
    else:
        topic_tree_based_data = []
    topic_tree_based_data = [ex for ex in topic_tree_based_data if ((ex not in most_recent) or filter_complete(ex))]
    struggling = filter(filter_complete, get_exercise_prereqs(get_struggling_exercises(user)))
    group = filter(filter_complete, get_group_recommendations(user))
    final = []
    for exercise_id in ((group[:2] + struggling[:2]) + topic_tree_based_data[:1]):
        if (exercise_id in exercise_parents_table):
            subtopic_id = exercise_parents_table[exercise_id]['subtopic_id']
            exercise = get_content_item(language=request.language, content_id=exercise_id)
            if exercise:
                exercise['topic'] = (get_content_item(language=request.language, content_id=subtopic_id, topic=True) or {})
                final.append(exercise)
    return final

What's a good function header?
assistant
#Here's a good function header.

def get_next_recommendations(user, request):