/system.boolean" target="_blank" rel="noopener noreferrer">Boolean</a>  (Optional)</dt><dd>
            Whether to return an empty instance with default property values instead of <span class="keyword"><span id="LST1B14872C_3" data-languageSpecificText="cpp=nullptr|vb=Nothing|nu=null"></span></span>
            if the command line input does not contain the indicated definition class (as self or as a parent).
            </dd></dl><h4 class="quickLinkHeader">Return Value</h4><a href="https://learn.microso