question: convenience method for type erasure when casting lists . concode_field_sep PlaceHolder placeHolder concode_field_sep List<O> transform concode_elem_sep T last concode_elem_sep T filterFirst concode_elem_sep boolean isEmpty concode_elem_sep T first
target: List < T > function ( List arg0 , Class < T > arg1 ) { return ( List < T > ) arg0 ; }