code: def supports(self, astype):
      return all(m.supports(astype) for m in self._submatchers)
  
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 4 for calling the CombinationMatcher obj's underlying member method code with example usage: obj.supports(astype) and returns: all