code: def __init__(self, **lens):
      self.lens = lens
  
imports: from __future__ import with_statement
  import random
  from array import array
  import pytest
  from whoosh import analysis, fields, formats, query
  from whoosh.compat import u, b, text_type
  from whoosh.compat import array_tobytes, xrange
  from whoosh.codec import default_codec
  from whoosh.filedb.filestore import RamStorage
  from whoosh.util.testing import TempStorage
label_desc: Use image node_id 1 to create a new FakeLengths object from inherited base classes: object with example: obj = FakeLengths()