/**
*/
protected function build_client()
{
$this->store = Cache::connect($this->config->store_dsn, $this->config->store_to);
$this->client = Service_OAuth::Client($this->store)->consumer_key($this->config->consumer_key)->consumer_secret($this->config->consumer_secret)->request_token_url($this->config->request_token_url)->access_token_url($this->config->access_token_url)->authorize_url($this->config->authorize_url);
}