void addConstructor(Struct s, Function f) {
Identifier structName = getActualTaggedTypeName(s);
f.setName(structName);
s.addDeclaration(f);
}
public void addMissingMethods(
Class<?> originalLib, Signatures existingSignatures, Struct outputLib) {
for (Pair<Function, String> f : getMethodsAndTheirSignatures(originalLib).getFirst())
if (existingSignatures.addMethod(f.getSecond()))
outputLib.addDeclaration(f.getFirst().clone());
}