def METHOD_NAME():
    # Returns a Path for a hollow ring.
    # The outer radius is 1, the inner radius is 1 - _THICKNESS.
    circle = Path.unit_circle()
    inner_radius = 1.0 - _THICKNESS
    vertices = np.concatenate(
        [circle.vertices[:-1], circle.vertices[-2::-1] * inner_radius]
    )
    codes = np.concatenate([circle.codes[:-1], circle.codes[:-1]])
    return Path(vertices, codes)