lru/lru.go
func (c *LRU) Purge() {
	for k := range c.items {
		delete(c.items, k)
	}
	c.evictList.Init()
}
func (c *LRU) Purge() {
	for k := range c.items {
		delete(c.items, k)
	}
	c.evictList.Init()
}
func ( c * LRU ) Purge ( ) { for k := range c . items { delete ( c . items , k ) } c . evictList . Init ( ) }
// Purge is used to completely clear the cache.
Purge is used to completely clear the cache .