diff --git a/core/interface.go b/core/interface.go
index 4c38dfc..ba23009 100644
--- a/core/interface.go
+++ b/core/interface.go
@@ -66,6 +66,7 @@ type TracerResult interface {
 	CaptureState(pc uint64, op OpCode, gas, cost uint64, scope ScopeContext, rData []byte, depth int, err error)
 	CaptureFault(pc uint64, op OpCode, gas, cost uint64, scope ScopeContext, depth int, err error)
 	CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error)
+	Result() interface{}
 }
 
 type ScopeContext interface {
@@ -74,8 +75,6 @@ type ScopeContext interface {
 	Contract() Contract
 }
 
-//will need a wrapper for scopecontext - in geth sc has fields of m s c, not methods, wrapper will need to go in wrappers.go, if there are private objects wrappers need to be in same package
-
 type Memory interface {
   GetCopy(int64, int64) []byte
   Len()     int