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parents = [osutils.safe_revision_id(v) for v in parents]
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return self._add_lines_with_ghosts(version_id, parents, lines,
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parent_texts, nostore_sha, random_id, check_content)
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def _add_lines_with_ghosts(self, version_id, parents, lines, parent_texts,
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"""Helper to do class specific add_lines_with_ghosts."""
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raise NotImplementedError(self.add_lines_with_ghosts)