docs: def _uncache(self, cpath, node, ureg):
          '''
          calc._uncache(cpath, uret) is an internally called function that handles loading of cached
            data from disk given the afferent parameters.
          '''
          # load the results, one at a time; all errors can just be allowed to raise upward since
          # this is always called from in a try block (in __call__)
          result = {}
          for eff in node.efferents:
              result[eff] = load(os.path.join(cpath, eff) + '.pp', ureg=ureg)
          return result