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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_smallest_dimensions(self, data):
 """A utility method to return the minimum size needed to fit all the elements in."""

        min_width = 0
        min_height = 0
        for element in self.elements:
            if not element: continue
            size = element.get_minimum_size(data)
            min_width = max(min_width, size.x)
            min_height = max(min_height, size.y)
        return datatypes.Point(min_width, min_height)