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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 _set_option(self, value):
 """ Sets a single option in the Combo, returning True if it was able too. """

        if len(self._options) > 0:
            if value in self._options:
                self._selected.set(value)
                return True
            else:
                return False
        else:
            return False