private function postNoResult(Message $message) : \Generator { yield from $this->chatClient->postMessage(sprintf(':%s %s', $message->getOrigin(), 'Sorry I couldn\'t find that page.')); }
private function getResult(Message $message) : \Generator { yield from $this->chatClient->postMessage(sprintf(':%s %s', $message->getOrigin(), $this->getResponse($message))); }