question: returns child sub-scorers concode_field_sep Weight weight concode_elem_sep String relationship concode_elem_sep Scorer child concode_field_sep float score concode_elem_sep DocIdSetIterator iterator concode_elem_sep int docID concode_elem_sep Weight getWeight concode_elem_sep TwoPhaseIterator twoPhaseIterator concode_elem_sep int freq
target: Collection < ChildScorer > function ( ) { return Collections . emptyList ( ) ; }