src/Service/Baidu/AccessToken.php
public function getCacheKey()
    {
        if (is_null($this->cacheKey)) {
            return $this->prefix.$this->appKey;
        }

        return $this->cacheKey;
    }
public function getCacheKey()
    {
        if (is_null($this->cacheKey)) {
            return $this->prefix.$this->appKey;
        }

        return $this->cacheKey;
    }
Get access token cache key.

@return string $this->cacheKey