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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_feed(self):
 """Get the gdata spreadsheet feed."""

        return self.client.GetListFeed(self.key, self.worksheet,
            visibility='private' if self.is_authed else 'public',
            # TODO always use projection='values' ? What does full give me?
            projection='full' if self.is_authed else 'values')