Pimcore\Model\Document::removeInheritedProperties PHP Method

    public function removeInheritedProperties()
    {
        $myProperties = [];
        if ($this->properties !== null) {
            foreach ($this->properties as $name => $property) {
                if (!$property->getInherited()) {
                    $myProperties[$name] = $property;
                }
            }
        }
        $this->setProperties($myProperties);
    }