@Override
	public void getFixedHandle(FixedHandle hand, ParserWalker walker) {
		hand.space = walker.getConstSpace();
		hand.offset_space = null;	// Not a dynamic value
		hand.offset_offset = 0;
		hand.size = 0;				// Cannot provide size
	}
A pattern with no semantic or printing content, that will match
any pattern.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/symbol/EpsilonSymbol.java