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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 get_min_max_bounds(self):
 """ Return a dict of min- and max-values for the given column. This is required to estimate the bounds of images. """

        bound = Bound(999999.0, 0.0)
        for bp in Breakpoint:
            bound.extend(self.get_bound(bp))
        return {'min': bound.min, 'max': bound.max}