tasks/__init__.py

from tasks.easy_task   import EASY_TASK
from tasks.medium_task import MEDIUM_TASK
from tasks.hard_task   import HARD_TASK, evaluate_hard_response

TASK_REGISTRY = {
    "easy":   EASY_TASK,
    "medium": MEDIUM_TASK,
    "hard":   HARD_TASK,
}

__all__ = ["EASY_TASK", "MEDIUM_TASK", "HARD_TASK",
           "TASK_REGISTRY", "evaluate_hard_response"]