public function removeClassBodyStyles($styleNames, core_kernel_classes_Class $itemClass, $recursive = true){
        $updatedItems = [];
        $items = $itemClass->getInstances($recursive);
        foreach($items as $item){
            if($this->isQtiItem($item)){
                if($this->removeBodyStyles($styleNames, $item)){
                    $updatedItems[] = $item;
                }
            }
        }
        return $updatedItems;
    }
public function removeClassBodyStyles($styleNames, core_kernel_classes_Class $itemClass, $recursive = true){
        $updatedItems = [];
        $items = $itemClass->getInstances($recursive);
        foreach($items as $item){
            if($this->isQtiItem($item)){
                if($this->removeBodyStyles($styleNames, $item)){
                    $updatedItems[] = $item;
                }
            }
        }
        return $updatedItems;
    }
public function removeClassBodyStyles ( $ styleNames , core_kernel_classes_Class $ itemClass , $ recursive = true ) { $ updatedItems = [ ] ; $ items = $ itemClass -> getInstances ( $ recursive ) ; foreach ( $ items as $ item ) { if ( $ this -> isQtiItem ( $ item ) ) { if ( $ this -> removeBodyStyles ( $ styleNames , $ item ) ) { $ updatedItems [ ] = $ item ; } } } return $ updatedItems ; }
Remove  an array of body style classes from the itemBody of all qti items in given class

@param array $styleNames
@param core_kernel_classes_Class $itemClass
@param boolean $recursive
Remove an array of body style classes from the itemBody of all qti items in given class