memcache.go
func (c *Client) Set(item *Item) error {
	return c.populateOne(cmdSet, item, 0)
}
func (c *Client) Set(item *Item) error {
	return c.populateOne(cmdSet, item, 0)
}
func ( c * Client ) Set ( item * Item ) error { return c . populateOne ( cmdSet , item , 0 ) }
// Set writes the given item, unconditionally.
Set writes the given item unconditionally .