"""Register optimization events variables."""

from __future__ import annotations


class Events:
    """Define optimization events.

    Behaves similar to enums.
    """

    OPTIMIZATION_START = "optimization:start"
    OPTIMIZATION_STEP = "optimization:step"
    OPTIMIZATION_END = "optimization:end"


DEFAULT_EVENTS = [Events.OPTIMIZATION_START, Events.OPTIMIZATION_STEP, Events.OPTIMIZATION_END]