Can we replace the ArrayCollection with Enumerable for ProvidesSearchables interface.

[videni]

Because I got millions of resources, updating search index by command statatic:index:update would run out of memory, can we replace the ArrayCollection below with Enumerable? so make it possible to use generator.

<?php

namespace Statamic\Search;

use Illuminate\Support\ArrayCollection;

interface ProvidesSearchables
{
    public static function handle(): string;

    public static function referencePrefix(): string;

    public function setKeys(array $keys): self;

   // here,   is it better to use  Illuminate\Support\Enumerable?
    public function provide(): ArrayCollection;

    public function contains($searchable): bool;

    public function find(array $keys): Enumerable;
}

[jasonvarga]

Sure, we'll review a PR if you'd like to make it.