code: def flip(self):
          
          self._load()
          groups = self.config.keys()
          tabular = {}
          for g in groups:
              config = self.config[g]
              for k in config:
                  r = tabular.get(k, {})
                  r[g] = config[k]
                  tabular[k] = r
          return tabular
docs: Provide flip view to compare how key/value pair is defined in each
          environment for administrative usage.
  
          :rtype: dict