Get size of file in file upload
I am trying to get the file size from the upload and then save this value to column called size. Any help please how can it be done? 
error: https://flareapp.io/share/47qKNq0m
error: https://flareapp.io/share/47qKNq0m
Forms\Components\FileUpload::make('path')
->storeFileNamesIn('name')
->directory('projects')
->afterStateUpdated(function (Closure $set, $state) {
$set('size', $state->getSize());
}),Flare
App\Filament\Resources\ProjectResource\RelationManagers\AttachmentsRelationManager::App\Filament\Resources\ProjectResource\RelationManagers{closure}(): Argument #1 ($set) must be of type Closure, Filament\Forms\Set given, called in /var/www/html/vendor/filament/support/src/Concerns/EvaluatesClosures.php on line 35 - The error occurred at http:/...
