Interface to be implemented by concrete authorization handlers. Defines the necessary subroutines to build authorized request against a Google API.
Initializes the handler with a given set of properties. Used to pass parameters such as: client ids, access tokens, etc.
Constructs a HTTP::Request valid to send an authorized request to the API. Implementors will attach authorization headers to the request at this phase.
Method called to check if the authorization has already been setup, so the prepare_request method can be called.
True, if the authorization is in place and the class can prepare requests. False, otherwise.
Copyright 2012 Google Inc.
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