private Collection<HREF> getTOC_HREFs(GhidraTOCFile file) {
		Collection<TOCItemDefinition> definitions = file.getTOCDefinitions();
		Collection<HREF> hrefs = new HashSet<>();
		for (TOCItemDefinition definition : definitions) {
			if (definition.getTargetAttribute() == null) {
				continue;
			}
			try {
				hrefs.add(new HREF(inputHelp, file.getFile(), definition.getTargetAttribute(),
					definition.getLineNumber()));
			}
			catch (URISyntaxException e) {
				throw new RuntimeException("Malformed reference: ", e);
			}
		}
		return hrefs;
	}
Input TOC items are those that we are building for the input help module of this collection
@return the items
Ghidra/Framework/Help/src/main/java/help/validator/location/HelpModuleCollection.java