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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_remote(self, remote='origin'):
 """Get a git remote object for this instance."""

        repo = self.get_repo()
        if repo is not None:
            remotes = {r.name: r for r in repo.remotes}
            r = repo.remotes[0] if remote not in remotes else remotes[remote]
        else:
            r = None
        return r