Finds the nearest ancestor of the specified element that complies with the specified target Element Type(s).
See also: What are element parent and ancestors?
Parameters:
element
If not specified, the generator context element is assumed,
i.e. the same as the call: contextElement.findAncestor(elementTypeSpec)
See Also: GOMContext.contextElement
elementTypeSpec
The returned element will comply with one of the target Element Types.
null,
if the element has no ancestors with the specified type
or resolving of parent elements is not supported by the DSM Type.