<?php  namespace App\Rules;  use Closure; use Stringable; use App\Models\Product; use Illuminate\Contracts\Validation\ValidationRule;  class ProductIsAvailableForOrder implements Stringable, ValidationRule { 	public function __toString(): string{}  	/** 	 * Run the validation rule. 	 */ 	public function validate(string $attribute, mixed $value, Closure $fail): void{} }