@Override
	public ItemCheckoutStatus[] getCheckouts() throws IOException {
		DomainFile df = getLinkedFileNoError();
		return df != null ? df.getCheckouts() : new ItemCheckoutStatus[0];
	}
{@code LinkedGhidraFile} corresponds to a {@link DomainFile} contained within a
{@link LinkedGhidraFolder}.
Ghidra/Framework/Project/src/main/java/ghidra/framework/data/LinkedGhidraFile.java