code: def render(self, name, value, attrs=None, renderer=None):
          
          html = ''
          html += '%s' % value
          html += '<input type="hidden" name="%s" value="%s">' % (escape(name), escape(value))
          return mark_safe(html)
docs: Returns this Widget rendered as HTML, as a Unicode string.
  
          The 'value' given is not guaranteed to be valid input, so subclass
          implementations should program defensively.