fembooru/ext/autocomplete/info.php

<?php declare(strict_types=1);

class AutoCompleteInfo extends ExtensionInfo
{
    public const KEY = "autocomplete";

    public string $key = self::KEY;
    public string $name = "Autocomplete";
    public array $authors = ["Daku"=>"admin@codeanimu.net"];
    public string $description = "Adds autocomplete to search & tagging.";
}