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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 blur(self):
 """ Call this to take the input focus from this Layout. """

        self._has_focus = False
        try:
            self._columns[self._live_col][self._live_widget].blur()
        except IndexError:
            # don't worry if there are no active widgets in the Layout
            pass