code: def _translate(self, embedding):
          "Translates an embedding back to linear coordinates if necessary."
          if embedding is None:
              return None
          if not self._linear:
              return embedding
          return [_bulk_to_linear(self.M, self.N, self.L, chain) for chain in embeddingf _translate(self, embedding):
          "Translates an embedding back to linear coordinates if necessary."
          if embedding is None:
              return None
          if not self._linear:
              return embedding
          return [_bulk_to_linear(self.M, self.N, self.L, chain) for chain in embedding]
docs: Translates an embedding back to linear coordinates if necessary.