cfg.Attributes = &otlpcommon.KeyValueList{
			Values: ConvertStructToAttributeKeyValues(labels.Fields),
		}
	}

	// it's unnecessary to check proxy version here,
	// users should add CEL/METADATA/REQ_WITHOUT_QUERY commands after all proxy upgraded to 1.23+.
	// Otherwise, the configuration will be rejected.
	cfg.Formatters = accessLogFormatters(format, labels)

	return cfg
}