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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 axis_overlap(ax1, ax2):
 """ Tests whether two axes overlap vertically """

    b1, t1 = ax1.get_position().intervaly
    b2, t2 = ax2.get_position().intervaly
    return t1 > b2 and b1 < t2