class_docstr: Matches documents containing a given phrase.
code: def tokens(self, boost=1.0):
      char_ranges = self.char_ranges
      startchar = endchar = None
      for i, word in enumerate(self.words):
          if char_ranges:
              startchar, endchar = char_ranges[i]
  
          yield Token(
              fieldname=self.fieldname,
              text=word,
              boost=boost * self.boost,
              startchar=startchar,
              endchar=endchar,
              chars=True,
          )
  
imports: from __future__ import division
  import copy
  from whoosh import matching
  from whoosh.analysis import Token
  from whoosh.compat import u
  from whoosh.query import qcore, terms, compound
label_desc: Use image node_id 8 for calling the Phrase obj's underlying member method code with example usage: obj.tokens(boost) without return types