code: @Nonnull
    public FineUploader5UI setTemplateID (@Nonnull @Nonempty final String sTemplateID)
    {
      ValueEnforcer.notEmpty (sTemplateID, "TemplateID");
      m_sTemplateID = sTemplateID;
      return this;
    }
docs: This points to the container element that contains the template to use for
  one or more Fine Uploader UI instances. You can either specify a string,
  which is the element ID (the ID of the container element on the page) or an
  Element that points to the container element.
  
  @param sTemplateID
  New value. May neither be <code>null</code> nor empty.
  @return this for chaining