Lazy load a custom column in a table

use Filament\Tables\Columns\Column;
use Livewire\Attributes\Lazy;

#[Lazy]
class CustomStatus extends Column
{
    public $longAttributeToCompute;
 
    public function mount()
    {
        $this->longAttributeToCompute = ExternalService::longApiCall($this->getRecord());
    }
    protected string $view = 'filament.tables.columns.CustomStatus';
}