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DOC Document nullable DataObject in used on table extension guide (#9755)

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Steve Boyd 2020-11-04 12:15:26 +13:00 committed by GitHub
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docs/en/02_Developer_Guides/14_Files/07_File_Usage.md
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@ -43,7 +43,7 @@ class UsedOnTableExtension extends Extension
// This extension hook will alter a DataObject after it was fetched via MyDataObject::get()
// This allows a greater level of flexibility to exclude or modify individual DataObjects
// It is less efficient to use this extension hook that `updateUsageExcludedClasses()` above
public function updateUsageDataObject(DataObject $dataObject)
public function updateUsageDataObject(?DataObject &$dataObject)
{
if (!($dataObject instanceof MyDataObject)) {
return;