docs: def load(cls, webfinger, pypump):
          """ Load JSON from disk into store object """
          filename = cls.get_filename()
  
          if os.path.isfile(filename):
              data = open(filename).read()
              data = json.loads(data)
              store = cls(data, filename=filename)
          else:
              store = cls(filename=filename)
  
          store.prefix = webfinger
          return store