'The row index that marks the bottom extent of the vertical span of
this cell. This is one greater than the index of the bottom-most row
of the span, similar to how a slice of the cell\'s rows would be
specified.'

@property
def bottom(self):

    if (self.vMerge is not None):
        tc_below = self._tc_below
        if ((tc_below is not None) and (tc_below.vMerge == ST_Merge.CONTINUE)):
            return tc_below.bottom
    return (self._tr_idx + 1)
