code: public GinjectorBindings createChildGinjectorBindings(Class<?> module) {
      assertNotFinalized();
      GinjectorBindings child = ginjectorBindingsProvider.get();
      child.setParent(this);
      child.setModule(module);
      children.add(child);
      return child;
    }
docs: Create a new {@link GinjectorBindings} that collects bindings for an injector that is the
  child of this {@link GinjectorBindings}.
  
  @param module the module the ginjector is being created for
  @return the child {@link GinjectorBindings}