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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 do_imports(self):
 """ Import all importable options """

        self.do_import('worker_class', Worker)
        self.do_import('queue_model', self.options.worker_class.queue_model)
        self.do_import('error_model', self.options.worker_class.error_model)
        self.do_import('callback', self.options.worker_class.callback)