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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 will_tag(self):
 """ Check whether the feed should be tagged """

        wanttags = self.retrieve_config('Tag', 'no')
        if wanttags == 'yes':
            if aux.staggerexists:
                willtag = True
            else:
                willtag = False
                print(("You want me to tag {0}, but you have not installed "
                       "the Stagger module. I cannot honour your request.").
                      format(self.name), file=sys.stderr, flush=True)
        else:
            willtag = False
        return willtag