code: def decode(self, descriptor):
          
          i = iter(descriptor)
          n = len(self._schema)
  
          # Add the name key to our schema
          schema = self._schema + ('name',)
          # For each dimensions, generator takes n items off iterator
          # wrapping the descriptor, making a tuple with the dimension
          # name appended
          tuple_gen = (tuple(itertools.islice(i, n)) + (d, )
              for d in self._dimensions)
  
          # Generate dictionary by mapping schema keys to generated tuples
          return [{ k: v for k, v in zip(schema, t) } for t in tuple_gen]
docs: Produce a list of dictionaries for each dimension in this transcoder