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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 insert(self, index, option):
 """ Insert a new `option` in the Combo at `index`. :param int option: The index of where to insert the option. :param string option: The option to insert into to the Combo. """

        option = str(option)
        self._options.insert(index, option)
        # if this is the first option, set it.
        if len(self._options) == 1:
            self.value = option

        self._refresh_options()