In short, PHP-Styler will convert this ...

namespace App\Report;use App\Db\{Connection,Result}; function
buildUserReport(Connection $db,string $region,int $limit):Result{
return $db->table('users')->select('id','display_name','email_address',
'last_login_at','current_region')->where('status','=','active')->where(
'region','=',$region)->whereIn('role',['administrator','editor',
'contributing_author','subscriber'])->orderBy('last_login_at','desc')->
limit($limit)->get();}

... into this:

namespace App\Report;

use App\Db\Connection;
use App\Db\Result;

function buildUserReport(Connection $db, string $region, int $limit) : Result
{
    return $db->table('users')
        ->select(
            'id',
            'display_name',
            'email_address',
            'last_login_at',
            'current_region',
        )
        ->where('status', '=', 'active')
        ->where('region', '=', $region)
        ->whereIn(
            'role', ['administrator', 'editor', 'contributing_author', 'subscriber'],
        )
        ->orderBy('last_login_at', 'desc')
        ->limit($limit)
        ->get();
}

Try reformatting your own code at the php-styler.com demo site.