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1 from openid.message import Message 24 """An interface for OpenID extensions. 5 6 @ivar ns_uri: The namespace to which to add the arguments for this 7 extension 8 """ 9 ns_uri = None 10 ns_alias = None 113612 - def getExtensionArgs(self):13 """Get the string arguments that should be added to an OpenID 14 message for this extension. 15 """ 16 raise NotImplementedError1719 """Add the arguments from this extension to the provided 20 message, or create a new message containing only those 21 arguments. 22 23 @returns: The message with the extension arguments added 24 """ 25 if message is None: 26 message = Message() 27 28 try: 29 message.namespaces.addAlias(self.ns_uri, self.ns_alias) 30 except KeyError: 31 if message.namespaces.getAlias(self.ns_uri) != self.ns_alias: 32 raise 33 34 message.updateArgs(self.ns_uri, self.getExtensionArgs()) 35 return message
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