Collection<String> getTypeVars() {
		if (typevars != null) {
			return typevars;
		}

		List<? extends TypeParameterElement> params = el.getTypeParameters();
		typevars = new ArrayList<>(params.size());
		for (TypeParameterElement param : params) {
			typevars.add(param.getSimpleName().toString());
		}
		return typevars;
	}
Gets a collection of all TypeVars needed by this method

@return a collection of all needed TypeVars
GhidraBuild/BuildFiles/Doclets/src/main/java/ghidra/doclets/typestubs/PythonTypeStubMethod.java