src/LinguaLeo/Cache/Provider/HotCache.php
public function delete($key)
    {
        if (isset($this->cache[$key])) {
            unset($this->cache[$key]);
            return true;
        }

        return false;
    }
public function delete($key)
    {
        if (isset($this->cache[$key])) {
            unset($this->cache[$key]);
            return true;
        }

        return false;
    }
{@inheritdoc}