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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 plot(self, bins=250, **kwargs):
 """An example plot function. You have to subclass this method."""

        # Data #
        counts = [sum(map(len, b.contigs)) for b in self.parent.bins]
        # Linear bins in logarithmic space #
        if 'log' in kwargs.get('x_scale', ''):
            start, stop = numpy.log10(1), numpy.log10(max(counts))
            bins = list(numpy.logspace(start=start, stop=stop, num=bins))
            bins.insert(0, 0)
        # Plot #
        fig = pyplot.figure()
        pyplot.hist(counts, bins=bins, color='gray')
        axes = pyplot.gca()
        # Information #
        title = 'Distribution of the total nucleotide count in the bins'
        axes.set_title(title)
        axes.set_xlabel('Number of nucleotides in a bin')
        axes.set_ylabel('Number of bins with that many nucleotides in them')
        # Save it #
        self.save_plot(fig, axes, **kwargs)
        pyplot.close(fig)
        # For convenience #
        return self