docs: def rows(self):
          """Return configuration in a form that can be used to reconstitute a
          Metadata object. Returns all of the rows for a dataset.
  
          This is distinct from get_config_value, which returns the value
          for the library.
  
          """
          from ambry.orm import Config as SAConfig
          from sqlalchemy import or_
  
          rows = []
          configs = self.dataset.session\
              .query(SAConfig)\
              .filter(or_(SAConfig.group == 'config', SAConfig.group == 'process'),
                      SAConfig.d_vid == self.dataset.vid)\
              .all()
  
          for r in configs:
              parts = r.key.split('.', 3)
  
              if r.group == 'process':
                  parts = ['process'] + parts
  
              cr = ((parts[0] if len(parts) > 0 else None,
                     parts[1] if len(parts) > 1 else None,
                     parts[2] if len(parts) > 2 else None
                     ), r.value)
  
              rows.append(cr)
  
          return rows