Where to get consumer secret required by buzz-python-client?

I am using buzz-python-client and there is the following line in the examples:

client.build_oauth_consumer('your-app.appspot.com', 'consumer_secret')

Where can I get a 'consumer_secr开发者_运维知识库et'?

as docs explain:

secret (string) - Your consumer secret. This is issued to you by Google.

Official guide to registration with Google.