code: def render_footer(self, ctx, data):
          
          if self.staticContent is None:
              return ctx.tag
  
          header = self.staticContent.getFooter()
          if header is not None:
              return ctx.tag[header]
          else:
              return ctx.tag
docs: Render any required static content in the footer, from the C{staticContent}
          attribute of this page.