<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def polygons_obb(polygons):
 """ Find the OBBs for a list of shapely.geometry.Polygons """

    rectangles = [None] * len(polygons)
    transforms = [None] * len(polygons)
    for i, p in enumerate(polygons):
        transforms[i], rectangles[i] = polygon_obb(p)
    return np.array(transforms), np.array(rectangles)