Reply Keyboard Markup telegram

$keyboard = [['text'=>'Функция 1'],['text'=>'Функция 2']];
	$reply_markup = $telegram->replyKeyboardMarkup(['keyboard' => $keyboard, 'resize_keyboard' => true, 'one_time_keyboard' => false, 'selective' => true]
);
	$response = $telegram->sendMessage([
		'chat_id' => '<CHAT_ID>', 
		'text' => 'Functions:', 
		'reply_markup' => $reply_markup
	]);
	$messageId = $response->getMessageId();