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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 add_errback(self, errback, *errback_args, **errback_kwargs):
 """Add a errback without an associated callback."""

        return self.add_callbacks(None, errback=errback, errback_args=errback_args,
                           errback_kwargs=errback_kwargs)