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N°8851 - Explicit nullable in functions parameters
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@@ -31,7 +31,7 @@ class ToolbarSeparatorUIBlockFactory extends AbstractUIBlockFactory
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*
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* @return \Combodo\iTop\Application\UI\Base\Component\Toolbar\Separator\VerticalSeparator
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*/
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public static function MakeVertical(string $sId = null)
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public static function MakeVertical(?string $sId = null)
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{
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return new VerticalSeparator($sId);
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}
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