@Override
	public String generateString() {
		StringBuilder sb = new StringBuilder();
		for (AssemblyParseTreeNode node : substs) {
			sb.append(node.generateString());
		}
		return sb.toString();
	}
Get the <em>i</em>th child, corresponding to the <em>i</em>th symbol from the RHS

@param i the position
@return the child
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/tree/AssemblyParseBranch.java