public function comments($uid) {
	  // check passed data
	  if(!is_string($uid)) {
	    // bad data passed
		  throw new LinkedInException('LinkedIn->comments(): bad data passed, $uid must be of type string.');
	  }
		
		// construct and send the request
    $query    = self::_URL_API . '/v1/people/~/network/updates/key=' . $uid . '/update-comments';
    $response = $this->fetch('GET', $query);
    
  	/**
	   * Check for successful request (a 200 response from LinkedIn server) 
	   * per the documentation linked in method comments above.
	   */ 
    return $this->checkResponse(200, $response);
	}