Fix.

node_modules/jest-diff/build/index.d.ts

@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import { DiffOptions as JestDiffOptions } from './types';
+declare function diff(a: any, b: any, options?: JestDiffOptions): string | null;
+declare namespace diff {
+    type DiffOptions = JestDiffOptions;
+}
+export = diff;
+//# sourceMappingURL=index.d.ts.map