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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 _log_tc_proxy(self):
 """Log the proxy settings."""

        if self.default_args.tc_proxy_tc:
            self.log.info(
                u'Proxy Server (TC): {}:{}.'.format(
                    self.default_args.tc_proxy_host, self.default_args.tc_proxy_port
                )
            )