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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 config(self):
 """load the passwords from the config file """

        if not hasattr(self, '_config'):
            raw_config = configparser.RawConfigParser()
            f = self._open()
            if f:
                raw_config.readfp(f)
                f.close()
            self._config = raw_config
        return self._config