mini.go
func (config *Config) Keys() []string {
	keys := make([]string, 0, len(config.values))
	for key := range config.values {
		keys = append(keys, key)
	}
	sort.Strings(keys)
	return keys
}
func (config *Config) Keys() []string {
	keys := make([]string, 0, len(config.values))
	for key := range config.values {
		keys = append(keys, key)
	}
	sort.Strings(keys)
	return keys
}
/*
Keys returns all of the global keys in the config.
*/