<?php  namespace App\Rules;  use Closure; use App\Models\Buyer; use App\Models\Driver; use App\Models\Vehicle; use App\Models\Warehouse; use Illuminate\Http\Request; use App\Contracts\CanBeNullableRelation;  class VerifyNullableRelation extends BaseRule { 	/** 	 * @param Buyer|Driver|Vehicle|Warehouse $relationModel 	 */ 	public function __construct(protected ?Request $request = null, protected ?CanBeNullableRelation $relationModel = null){}  	/** 	 * Run the validation rule. 	 */ 	public function validate(string $attribute, mixed $value, Closure $fail): void{} }