diff --git a/src/babel/traversal/path/family.js b/src/babel/traversal/path/family.js
index cfba7de496..4558abfaf9 100644
--- a/src/babel/traversal/path/family.js
+++ b/src/babel/traversal/path/family.js
@@ -23,6 +23,18 @@ export function getStatementParent(): ?NodePath {
   return path;
 }
 
+/**
+ * Description
+ */
+
+export function getOpposite() {
+  if (this.key === "left") {
+    return this.getSibling("right");
+  } else if (this.key === "right") {
+    return this.getSibling("left");
+  }
+}
+
 /**
  * Description
  */