phpstan l6报错 `Unable to resolve the template type`

环境

php:8.3.2
laravel:10.42.0
phpstan:1.10.63
larastan:2.9.2

当前问题

在使用 phpstan (level 6)进行静态分析时，报告如下错误:

 ------ --------------------------------------------------------------------------------------------------------------------------------------------
  Line   Services/Goods/BrandIndexService.php
 ------ --------------------------------------------------------------------------------------------------------------------------------------------
  23     Unable to resolve the template type TWhenReturnType in call to method Illuminate\Database\Eloquent\Builder<App\Models\Goods\Brand>::when()
         💡 See: https://phpstan.org/blog/solving-phpstan-error-unable-to-resolve-template-type
 ------ --------------------------------------------------------------------------------------------------------------------------------------------

出问题的代码如下：

<?php

namespace App\Services\Goods;

use App\Models\Goods\Brand;
use Illuminate\Database\Eloquent\Builder;

/**
 * 品牌列表服务
 */
class BrandIndexService
{
    /**
     * 查询列表
     *
     * @param  array<string,string>  $options  查询参数
     * @return Builder<Brand> 查询构建器
     */
    public function handle(array $options = []): Builder
    {
        $keyword = $options['keyword'] ?? '';

        return Brand::query()
            ->when($keyword, fn (Builder $query) => $query->likeName($keyword));
    }
}

分析原因

我分析原因是模型查询构建器的 when() 方法中的 @template 注解导致：

    /**
     * Apply the callback if the given "value" is (or resolves to) truthy.
     *
     * @template TWhenParameter
     * @template TWhenReturnType
     *
     * @param  (\Closure($this): TWhenParameter)|TWhenParameter|null  $value
     * @param  (callable($this, TWhenParameter): TWhenReturnType)|null  $callback
     * @param  (callable($this, TWhenParameter): TWhenReturnType)|null  $default
     * @return $this|TWhenReturnType
     */
    public function when($value = null, callable $callback = null, callable $default = null)
    {
    // ...