class_docstr: Stores frequency information for each posting.
  
  Supports: frequency, weight.
class_docstr_tok: ["Stores","frequency","information","for","each","posting",".","Supports",":","frequency",",","weight","."]
code: def word_values(self, value, analyzer, **kwargs):
      fb = self.field_boost
      length = 0
      freqs = defaultdict(int)
      weights = defaultdict(float)
  
      kwargs["boosts"] = True
      for t in tokens(value, analyzer, kwargs):
          length += 1
          freqs[t.text] += 1
          weights[t.text] += t.boost
  
      wvs = (
          (w, freq, weights[w] * fb, pack_uint(freq))
          for w, freq in iteritems(freqs)
      )
      return wvs
  
imports: from collections import defaultdict
  from whoosh.analysis import unstopped, entoken
  from whoosh.compat import iteritems, dumps, loads, b
  from whoosh.system import emptybytes
  from whoosh.system import _INT_SIZE, _FLOAT_SIZE
  from whoosh.system import pack_uint, unpack_uint, pack_float, unpack_float
label_desc: Use image node_id 2 for calling the Frequency obj's underlying member method code with example usage: obj.word_values(value, analyzer) and returns: wvs