Set<String> getTypeVars() {
		if (typevars != null) {
			return typevars;
		}
		List<? extends TypeParameterElement> params = el.getTypeParameters();
		typevars = new HashSet<>();
		for (TypeParameterElement param : params) {
			typevars.add(param.getSimpleName().toString());
		}
		for (PythonTypeStubNestedType nested : getNestedTypes()) {
			typevars.addAll(nested.getTypeVars());
		}
		for (PythonTypeStubMethod method : getMethods()) {
			typevars.addAll(method.getTypeVars());
		}
		return typevars;
	}
Gets a set of all the TypeVars used by this type

@return a set of all used TypeVars
GhidraBuild/BuildFiles/Doclets/src/main/java/ghidra/doclets/typestubs/PythonTypeStubType.java