1 files changed, 11 insertions, 0 deletions
diff --git a/core/types/common.go b/core/types/common.go
new file mode 100644
index 000000000..ba88b77e1
--- /dev/null
+++ b/core/types/common.go
@@ -0,0 +1,11 @@
+package types
+
+import (
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/state"
+)
+
+type BlockProcessor interface {
+	Process(*Block) (*big.Int, state.Messages, error)
+}