docs: def _datapaths(self):
          """Returns a simple key-value map for easy access to data paths"""
          paths = { }
          try:
              data = self._config['data']
              for k in data:
                  paths[k] = data[k]['path']
          except KeyError as e:
              raise AitConfigMissing(e.message)
          except Exception as e:
              raise AitConfigError('Error reading data paths: %s' % e)
  
          return paths