Index: node_modules/recharts/es6/util/stacks/getStackSeriesIdentifier.js
===================================================================
--- node_modules/recharts/es6/util/stacks/getStackSeriesIdentifier.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/recharts/es6/util/stacks/getStackSeriesIdentifier.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,8 @@
+/**
+ * Returns identifier for stack series which is one individual graphical item in the stack.
+ * @param graphicalItem - The graphical item representing the series in the stack.
+ * @return The identifier for the series in the stack
+ */
+export function getStackSeriesIdentifier(graphicalItem) {
+  return graphicalItem === null || graphicalItem === void 0 ? void 0 : graphicalItem.id;
+}
Index: node_modules/recharts/es6/util/stacks/stackTypes.js
===================================================================
--- node_modules/recharts/es6/util/stacks/stackTypes.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/recharts/es6/util/stacks/stackTypes.js	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,1 @@
+export {};