code: def supports_block_quality(self):
      return all(m.supports_block_quality() 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 2 for calling the CombinationMatcher obj's underlying member method code with example usage: obj.supports_block_quality() and returns: all