code: FieldRef getCurrentRenderee() {
      FieldRef local = currentRendereeField;
      if (local == null) {
        local =
            currentRendereeField =
                FieldRef.createField(owner, CURRENT_RENDEREE_FIELD, SoyValueProvider.class);
      }
      return local;
    }
docs: Returns the field that holds the currently rendering SoyValueProvider.
  
  <p>Unlike normal variables the VariableSet doesn't maintain responsibility for saving and
  restoring the current renderee to a local.