@Override
	public String getName() {
		if (name != null) {
			return name;
		}
		throw new UnsupportedOperationException();
	}
A stub of the {@link FunctionSignature} interface.  This can be used to supply a test program 
manager or to spy on system internals by overriding methods as needed.
Ghidra/Framework/SoftwareModeling/src/test/java/ghidra/program/model/TestDoubleFunctionSignature.java