code: def correct(self):
      
      # regex matches: contraction or word or punctuation or whitespace
      tokens = nltk.tokenize.regexp_tokenize(self.raw, "\w*('\w*)+|\w+|[^\w\s]|\s")
      corrected = (Word(w).correct() for w in tokens)
      ret = ''.join(corrected)
      return self.__class__(ret)
docs: Attempt to correct the spelling of a blob.
      .. versionadded:: 0.6.0
      :rtype: :class:`BaseBlob <BaseBlob>`