message: Updated more docstrings
diff: @@ -113,10 +113,11 @@ class Extraction:
  """A single extraction result.
  Attributes:
  - value: The name of the slot.
  - score: The predicted class.
  - start: The predicted class.
  - end: The predicted class.
  + value: The text value of the extraction.
  + score: The score for this extraction e.g. (but not necessarily) a
  + probability in [0,1].
  + start: Start of the bytes of this extraction.
  + end: Exclusive end of the bytes of this extraction.
  """
  value: str
  