WIP - add extractor, generate snippet_data

node_modules/babel-helper-is-void-0/lib/index.js

@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function (t) {
+  return function isVoid0(expr) {
+    return t.isUnaryExpression(expr, { operator: "void" }) && t.isNumericLiteral(expr.argument, { value: 0 });
+  };
+};