1 files changed, 6 insertions, 0 deletions
diff --git a/core/types/block.go b/core/types/block.go
index 61b6535..c445fd2 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -50,6 +50,12 @@ type Block struct {
 	Status          Status                   `json:"-"`
 }
 
+// BlockConverter interface define the interface for extracting block
+// information from an existing object.
+type BlockConverter interface {
+	Block() *Block
+}
+
 func (b *Block) String() string {
 	return fmt.Sprintf("Block(%v)", b.Hash.String()[:6])
 }