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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_config_keystone(self, username, password):
 """ Set config to Keystone """


        self._keystone_auth = KeystoneAuth(
            settings.KEYSTONE_AUTH_URL, settings.KEYSTONE_PROJECT_NAME, username, password,
            settings.KEYSTONE_USER_DOMAIN_NAME, settings.KEYSTONE_PROJECT_DOMAIN_NAME,
            settings.KEYSTONE_TIMEOUT)