AddVarArrayDocblockFromDimFetchAssignRector

Add @param array docblock if array_map is used on the parameter

 final class SomeClass
 {
+    /**
+     * @var array<array<string, string>>
+     */
     private array $items = [];

     public function run()
     {
         $this->items[] = [
             'name' => 'John',
         ];
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclarationDocblocks\Rector\Class_\AddVarArrayDocblockFromDimFetchAssignRector;

return RectorConfig::configure()
    ->withRules([
        AddVarArrayDocblockFromDimFetchAssignRector::class,
    ]);