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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 bound_elems(elems):
 """ Finds the minimal bbox that contains all given elems """

    group_x0 = min(map(lambda l: l.x0, elems))
    group_y0 = min(map(lambda l: l.y0, elems))
    group_x1 = max(map(lambda l: l.x1, elems))
    group_y1 = max(map(lambda l: l.y1, elems))
    return (group_x0, group_y0, group_x1, group_y1)