button.blade.php

<button {{ $attributes->merge(['class' => App\View\Components\Button::$class ]) }}>
  {{ $slot }}
</button>

Button.php

<?php

namespace App\View\Components;

use Illuminate\View\Component;

class Button extends Component
{
    public static $class = "py-1 px-2 font-bold uppercase rounded";
    
    public function render()
    {
        return view('components.button');
    }
}

myview.blade.php

//  now we find ourselves in a situation where we need to implement what
//  looks like a button, but we need to use `a` instead of `button`.

<a href="/some-other-page" class="{{ App\View\Components\Button::$class }}">
  My Great Link, That Looks Like a Button!
</a>