public String getString(DWARFAttribute attribute, String defaultValue) {
		FoundAttribute attrInfo = findAttribute(attribute);
		if (attrInfo == null || !(attrInfo.attr instanceof DWARFStringAttribute strAttr)) {
			return defaultValue;
		}
		return strAttr.getValue(attrInfo.die.getCompilationUnit());
	}
Returns the string value of the requested attribute, or -defaultValue- if
the attribute is missing or not the correct type.

@param attribute {@link DWARFAttribute} id
@param defaultValue value to return if attribute is not present
@return String value, or the defaultValue if attribute is not present
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DIEAggregate.java