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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 version(self):
 """Fetch version information from all plugins and store in the report version file"""


        versions = []
        versions.append("sosreport: %s" % __version__)

        for plugname, plug in self.loaded_plugins:
            versions.append("%s: %s" % (plugname, plug.version))

        self.archive.add_string(content="\n".join(versions),
                                dest='version.txt')