Longman\TelegramBot\Entities\KeyboardButton::couldBe PHP Method

    public static function couldBe($data)
    {
        return is_array($data) && array_key_exists('text', $data);
    }

 public function testInlineKeyboardButtonCouldBe()
 {
     self::assertTrue(KeyboardButton::couldBe(['text' => 'message']));
     self::assertFalse(KeyboardButton::couldBe(['no_text' => 'message']));
 }