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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 find_mature(x, y, win=10):
 """ Window apprach to find hills in the expression profile """

    previous = min(y)
    peaks = []
    intervals = range(x, y, win)
    for pos in intervals:
        if y[pos] > previous * 10:
            previous = y[pos]
            peaks.add(pos)
    peaks = _summarize_peaks(peaks)