docs: def transform_record(self, pid, record, links_factory=None):
          """Transform record into an intermediate representation.
  
          :param pid: The :class:`invenio_pidstore.models.PersistentIdentifier`
              instance.
          :param record: The :class:`invenio_records.api.Record` instance.
          :param links_factory: The link factory. (Default: ``None``)
          :returns: The intermediate representation for the record.
          """
          return self.dump(self.preprocess_record(pid, record,
                           links_factory=links_factory))