laravel where in eloquent code example

Example 1: find or fail laravel

$model = App\Models\Flight::findOrFail(1);

$model = App\Models\Flight::where('legs', '>', 100)->firstOrFail();

Example 2: laravel scope

public function apply(Builder $builder, Model $model)
    {
        $builder->where('age', '>', 200);
    }