code: def __init__(self, submatchers, boost=1.0):
      self._submatchers = submatchers
      self._boost = boost
  
imports: from __future__ import division
  from array import array
  from whoosh.compat import xrange
  from whoosh.matching import mcore
label_desc: Use image node_id 1 to create a new CombinationMatcher object from inherited base classes: mcore with example: obj = CombinationMatcher(submatchers, boost)