code: def openid_form(parser, token):
      
  
      bits = get_bits(token)
  
      if len(bits) > 1:
          return FormNode(bits[0], bits[1:])
      if len(bits) == 1:
          return FormNode(bits[0])
      return FormNode(None)
docs: Render OpenID form. Allows to pre set the provider::
  
      	{% openid_form "https://www.google.com/accounts/o8/id" %}
  
      Also creates custom button URLs by concatenating all arguments
      after the provider's URL
  
      	{% openid_form "https://www.google.com/accounts/o8/id" STATIC_URL "image/for/google.jpg" %}