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Fix IteratorAggregate return type on HelperSet, fatal error with PHP 8.1 #42318

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Fix IteratorAggregate return type on HelperSet, fatal error with PHP 8.1 #42318

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3 changes: 2 additions & 1 deletion src/Symfony/Component/Console/Helper/HelperSet.php
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\InvalidArgumentException;
use Traversable;

/**
* HelperSet represents a set of helpers to be used with a command.
Expand Down Expand Up @@ -91,7 +92,7 @@ public function getCommand()
/**
* @return Helper[]
*/
public function getIterator()
public function getIterator() : Traversable
{
return new \ArrayIterator($this->helpers);
}
Expand Down