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Make typed parameters explicitly nullable (#271 errata) #272

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Make typed parameters explicitly nullable (#271 errata) #272

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2 changes: 1 addition & 1 deletion src/Common/Helper.php
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,7 @@ public static function validateLuhn($number)
* @param mixed $target The object to set parameters on
* @param array $parameters An array of parameters to set
*/
public static function initialize($target, array $parameters = null)
public static function initialize($target, ?array $parameters = null)
{
if ($parameters) {
foreach ($parameters as $key => $value) {
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