question: converts a collection of edges to their diff-based identities . concode_field_sep Edge edge concode_elem_sep int from concode_elem_sep int to concode_elem_sep String label concode_elem_sep String type concode_field_sep int hashCode concode_elem_sep boolean equals concode_elem_sep NLPInstance diff
target: Set < EdgeIdentity > function ( Collection < Edge > arg0 ) { HashSet < EdgeIdentity > loc0 = new HashSet < EdgeIdentity > ( ) ; for ( Edge loc1 : arg0 ) loc0 . add ( new EdgeIdentity ( loc1 ) ) ; return loc0 ; }