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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 open_inbox_page(self, content_type):
 """ Open an instance of the inbox page for the logged in user. """

        from .inbox_page import InboxPage

        with self.term.loader('Loading inbox'):
            page = InboxPage(self.reddit, self.term, self.config, self.oauth,
                             content_type=content_type)
        if not self.term.loader.exception:
            return page