public function listUserRepositories($user, $type = null, $sort = null, $direction = null)
	{
		$data = array();
		if(!is_null($type))
			$data['type'] = $type;
		if(!is_null($sort))
			$data['sort'] = $sort;
		if(!is_null($direction))
			$data['direction'] = $direction;
		
		return $this->client->request("/users/$user/repos", 'GET', $data, 200, 'GitHubSimpleRepo', true);
	}