text: jest.mock("../src/libs/ddbClient.js");
  jest.mock("@aws-sdk/client-dynamodb");
  
  // Get service clients module and commands.
  import 'regenerator-runtime/runtime'
  import { run, params } from "../src/ddb_updateitem.js";
  import { ddbClient } from "../src/libs/ddbClient";
  
  describe("@aws-sdk/client-dynamodb mock", () => {
      it("should successfully mock dynamodb client", async () => {
          ddbClient.send.mockResolvedValue({ isMock: true });
          const response = await run(params);
          expect(response.isMock).toEqual(true);
      });
  });
  