protected function store_supports_key_awareness() {
        if ($this->supportskeyawareness === null) {
            $this->supportskeyawareness = ($this->store instanceof cache_is_key_aware);
        }
        return $this->supportskeyawareness;
    }
protected function store_supports_key_awareness() {
        if ($this->supportskeyawareness === null) {
            $this->supportskeyawareness = ($this->store instanceof cache_is_key_aware);
        }
        return $this->supportskeyawareness;
    }
protected function store_supports_key_awareness ( ) { if ( $ this -> supportskeyawareness === null ) { $ this -> supportskeyawareness = ( $ this -> store instanceof cache_is_key_aware ) ; } return $ this -> supportskeyawareness ; }
Returns true if the store supports key awareness.

@return bool
Returns true if the store supports key awareness .