دالة tap() لكتابة كود أكثر سلاسة

$user = User::create($request->validated());
$user->assignRole('member');
$user->sendWelcomeEmail(); 
return $user;

return tap(User::create($request->validated()), function ($user) { 
$user->assignRole('member'); 
$user->sendWelcomeEmail(); 
});

return tap(User::create($request->validated())) 
->assignRole('member') 
->sendWelcomeEmail();

return tap($user)->update(['last_login' => now()]);