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Using awake and sleep

 Another strategy for managing session state is to create it at the beginning of the request-response loop and then release it at the end. The session object's awake and sleep methods provide the hooks you need to implement this strategy. A session object receives an awake message at the beginning of the request-response loop (where you can re-initialize the session state) and a sleep message at the end (where you can release it). Remember that awake and sleep are not sent during the direct action request-response loop, but the direct action request-response loop does not use session objects by default.

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