Transform bbox into UTM CRS

    :param bbox: bounding box
    :type bbox: geometry.BBox
    :return: bounding box in UTM CRS
    :rtype: geometry.BBox

def to_utm_bbox(bbox):
    """ Transform bbox into UTM CRS

    :param bbox: bounding box
    :type bbox: geometry.BBox
    :return: bounding box in UTM CRS
    :rtype: geometry.BBox
    """
    if CRS.is_utm(bbox.crs):
        return bbox
    lng, lat = bbox.middle
    utm_crs = get_utm_crs(lng, lat, source_crs=bbox.crs)
    return bbox.transform(utm_crs)