<T extends DWARFAttributeValue> T getValue(Class<T> clazz) {
			if (attr != null && clazz.isAssignableFrom(attr.getClass())) {
				return clazz.cast(attr);
			}
			return null;
		}
A simple class used by findAttribute() to return the found attribute, along with
the DIE it was found in, and the DWARFForm type of the raw attribute.

@param attr attribute value 
@param die  DIE the value was found in
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DIEAggregate.java