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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_above_key_rect(self):
 """Returns tuple key rect of above cell"""


        key_above = self.row - 1, self.col, self.tab

        border_width_bottom = \
            float(self.cell_attributes[key_above]["borderwidth_bottom"]) / 2.0

        rect_above = (self.x, self.y-border_width_bottom,
                      self.width, border_width_bottom)
        return key_above, rect_above