Convert nested arrow function call to first class callable
-fn ($parameter) => Call::to($parameter);
+Call::to(...);Configure your rector.php:
<?php
use Rector\CodingStyle\Rector\ArrowFunction\ArrowFunctionDelegatingCallToFirstClassCallableRector;
use Rector\Config\RectorConfig;
return RectorConfig::configure()
->withRules([
ArrowFunctionDelegatingCallToFirstClassCallableRector::class,
]);
