public String toDebugString(List<ClangToken> calloutTokens, String start, String end) {

		if (calloutTokens == null) {
			calloutTokens = Collections.emptyList();
		}

		StringBuilder buffy = new StringBuilder(getLineNumber() + ": ");
		for (ClangToken token : tokens) {

			boolean isCallout = calloutTokens.contains(token);
			if (isCallout) {
				buffy.append(start);
			}

			buffy.append(token.getText());

			if (isCallout) {
				buffy.append(end);
			}
		}

		return buffy.toString();
	}
A line of C code. This is an independent grouping
of C tokens from the statement, vardecl retype groups
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/ClangLine.java