class Decoration:
    """
    Decoration lane didn't connect any nodes, they are individual or isolated.
    """
    start = "decoration"
    end = "decoration_"


class Goal:
    """
    Goal at intersection
    The keywords 0, 1, 2 should be reserved, and only be used in roundabout and intersection
    """

    RIGHT = 0
    STRAIGHT = 1
    LEFT = 2
    ADVERSE = 3  # Useless now
