usmanfarman

  /**
	* Download an attachment's content.
	*
	* @param string item_id ID of the timeline item the attachment belongs to.
	* @param Google_Attachment $attachment Attachment's metadata.
	* @return string The attachment's content if successful, null otherwise.
	*/
	function download_attachment($item_id, $attachment) {
		$request = new Google_HttpRequest($attachment->getContentUrl(), 'GET', null, null);
		$httpRequest = Google_Client::$io->authenticatedRequest($request);