Method demo

examples/demo.php:2882–2894

()

class CollectGenericDemo
{
    public function demo(): void
    {
        /** @var Pen[] $pens */
        $pens = [];

        // collect() uses function-level @template to carry element types
        // through to the returned FluentCollection.
        $collection = collect($pens);
        $collection->first()->write();    // TValue resolves to Pen

        // Inline chaining works too
        collect($pens)->first()->write(); // same resolution, no intermediate variable
    }
}