Deprecated: Illuminate\Testing\Fluent\Concerns\Has::count(): Implicitly marking parameter $length as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\larabooks\vendor\laravel\framework\src\Illuminate\Testing\Fluent\Concerns\Has.php on line 18

Deprecated: Illuminate\Testing\Fluent\Concerns\Has::has(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\larabooks\vendor\laravel\framework\src\Illuminate\Testing\Fluent\Concerns\Has.php on line 51

Deprecated: Illuminate\Testing\Fluent\Concerns\Has::prop(): Implicitly marking parameter $key as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\larabooks\vendor\laravel\framework\src\Illuminate\Testing\Fluent\Concerns\Has.php on line 188