code: func OptionKVProviderURL(url string) Option {
  	return func(c *Config) {
  		logrus.Debugf("Option OptionKVProviderURL: %s", url)
  		if _, ok := c.Scopes[datastore.GlobalScope]; !ok {
  			c.Scopes[datastore.GlobalScope] = &datastore.ScopeCfg{}
  		}
  		c.Scopes[datastore.GlobalScope].Client.Address = strings.TrimSpace(url)
  	}
  }
docs: // OptionKVProviderURL function returns an option setter for kvstore url