func (c *Client) Ping() error {
	_, err := c.client.Head(c.url())
	return err
}
func (c *Client) Ping() error {
	_, err := c.client.Head(c.url())
	return err
}
func ( c * Client ) Ping ( ) error { _ , err := c . client . Head ( c . url ( ) ) return err }
// Ping returns an error if remote enpoint cannot be reached.
Ping returns an error if remote enpoint cannot be reached .