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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)