code: public void addPositionalBindings(Object first, Object... others) {
      positionalBindings.add(first);
      positionalBindings.addAll(Arrays.asList(others));
    }
docs: Adds the positional bindings that are needed for any positional parameters in the GQL query.
  
  @param first
  the first positional binding
  @param others
  subsequent positional bindings, if any