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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 findGap(song):
 """Return the position of silence in a song"""

    try:
        silence = pd.silence.detect_silence(song)
    except IOError:
        print("There isn't a song there!")

    maxlength = 0

    for pair in silence:
        length = pair[1] - pair[0]
        if length >= maxlength:
            maxlength = length
            gap = pair

    return gap