PHP 8.1+ compatibility

[matesasesinos]

Hi, in php 8.1.10 I found this error:

[08-Jun-2023 12:23:36 UTC] PHP Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of MailerLiteApi\Common\Collection::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\mailerlite\mailerlite-api-v2-php-sdk\src\Common\Collection.php:101 Stack trace: #0 C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\mailerlite\mailerlite-api-v2-php-sdk\src\Common\Collection.php(10): {closure}(8192, 'Return type of ...', 'C:\\laragon\\www\\...', 101) #1 C:\laragon\www\onlinua\wp-content\plugins\fakerpress\vendor\composer\ClassLoader.php(582): include('C:\\laragon\\www\\...') #2 C:\laragon\www\onlinua\wp-content\plugins\fakerpress\vendor\composer\ClassLoader.php(433): Composer\Autoload\{closure}('C:\\laragon\\www\\...') #3 C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\mailerlite\mailerlite-api-v2-php-sdk\src\Common\ApiAbstract.php(191): Composer\Autoload\ClassLoader->loadClass('MailerLiteApi\\C...') #4 C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\mailerlite\mailerlite-api-v2-php-sdk\src\Common\ApiAbstract.php(45): MailerLiteApi\Common\ApiAbstract->generateCollection(Array) #5 C:\laragon\www\onlinua\wp-content\plugins\onlinua\src\Includes\OnlinuaMailerlite.php(46): MailerLiteApi\Common\ApiAbstract->get() #6 C:\laragon\www\onlinua\wp-content\plugins\onlinua\src\Admin\OnlinuaPostMetabox.php(177): Onlinua\Includes\OnlinuaMailerlite::get_groups() #7 C:\laragon\www\onlinua\wp-content\plugins\onlinua\src\Admin\OnlinuaPostMetabox.php(75): Onlinua\Admin\OnlinuaPostMetabox::get_ml_groups() #8 C:\laragon\www\onlinua\wp-includes\class-wp-hook.php(308): Onlinua\Admin\OnlinuaPostMetabox::diplomaturas_side_fields('') #9 C:\laragon\www\onlinua\wp-includes\class-wp-hook.php(332): WP_Hook->apply_filters('', Array) #10 C:\laragon\www\onlinua\wp-includes\plugin.php(517): WP_Hook->do_action(Array) #11 C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\htmlburger\carbon-fields\core\Loader\Loader.php(113): do_action('carbon_fields_r...') #12 C:\laragon\www\onlinua\wp-includes\class-wp-hook.php(308): Carbon_Fields\Loader\Loader->trigger_fields_register('') #13 C:\laragon\www\onlinua\wp-includes\class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #14 C:\laragon\www\onlinua\wp-includes\plugin.php(517): WP_Hook->do_action(Array) #15 C:\laragon\www\onlinua\wp-settings.php(623): do_action('init') #16 C:\laragon\www\onlinua\wp-config.php(106): require_once('C:\\laragon\\www\\...') #17 C:\laragon\www\onlinua\wp-load.php(50): require_once('C:\\laragon\\www\\...') #18 C:\laragon\www\onlinua\wp-admin\admin.php(34): require_once('C:\\laragon\\www\\...') #19 C:\laragon\www\onlinua\wp-admin\post.php(12): require_once('C:\\laragon\\www\\...') #20 {main} in C:\laragon\www\onlinua\wp-content\plugins\onlinua\vendor\mailerlite\mailerlite-api-v2-php-sdk\src\Common\Collection.php on line 10

The error itself: Method 'MailerLiteApi\Common\Collection::offsetExists()' is not compatible with method 'ArrayAccess::offsetExists()'.intelephense(1038)

Other error: Method 'MailerLiteApi\Common\Collection::count()' is not compatible with method 'Countable::count()'.intelephense(1038)

maybe I do not have the latest version of the package, my version is "mailerlite/mailerlite-api-v2-php-sdk": "^0.3.2",