Laravel - 通过composer安装包并在控制器中访问它

I have an laravel application and I need to install this package lunar-calendar

I install it and the package shows in vendor folder:

The package documentation tells to required the package like this:

use yzha5\LunarCalendar;

I put this way but also try this in controller:

use App\yzha5\LunarCalendar;

but returns not found.

I also run the command to publish vendor but doesn't work.

How can I use this package?

The package doesn't contain a service provider, so publish vendor will accomplish nothing really.

use yzha5\LunarCalendar; 
\\ will not work because it isn't registered in your service provider that this alias equals the package path

use App\yzha5\LunarCalendar; 
\\ will not work because there isn't a folder in app directory named yzha5.

Since it's just two classes and not exactly a decently build package, I'd just fetch those two files into a directory at your choosing, change the namespace and call them.

If you look at the package composer.json file, you can see the library namespace is mapped to the src/ directory as follows:

 "yzha5\\LunarCalendar\\": "src/"

Therefore, to use the class your use statements need to be:

use yzha5\LunarCalendar\LunarCalendar;

$array = LunarCalendar::solarToLunar(1984, 9, 22);

TL;DR - the README.md documentation is wrong.