code: def matcher(self, searcher, context=None):
      return self.child.matcher(searcher, context)
  
imports: from __future__ import division
  from array import array
  from whoosh import matching
  from whoosh.compat import text_type, u
  from whoosh.query import qcore
label_desc: Use image node_id 13 for calling the WrappingQuery obj's underlying member method code with example usage: obj.matcher(searcher, context) and returns: self