Why chain-api/src/utils/signatures.spec.ts can not use?

[LXHLeaner]

Why chain-api/src/utils/signatures.spec.ts can not use?

it("should sort keys", () => {
// Given
const obj = { c: 8, b: [{ z: 6, y: 5, x: 4 }, 7], a: 3 };

    // When
    const toSign = signatures.getPayloadToSign(obj);

    // Then
    expect(toSign).toEqual('{"a":3,"b":[{"x":4,"y":5,"z":6},7],"c":8}');
});

ERR:

(0 , json_stringify_deterministic_1.default) is not a function
TypeError: (0 , json_stringify_deterministic_1.default) is not a function
at serialize (/Users/lc/Documents/TsCode/01Example/tests/serialize.ts:19:19)
at Object.getPayloadToSign (/Users/lc/Documents/TsCode/01Example/tests/signatures.ts:33:19)
at Object. (/Users/lc/Documents/TsCode/01Example/tests/galasignature.spec.ts:26:35)
at Promise.then.completed (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/utils.js:298:28)
at new Promise ()
at callAsyncCircusFn (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/utils.js:231:10)
at _callCircusTest (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/run.js:316:40)
at _runTest (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/run.js:252:3)
at _runTestsForDescribeBlock (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/run.js:126:9)
at _runTestsForDescribeBlock (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/run.js:121:9)
at run (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/run.js:71:3)
at runAndTransformResultsToJestFormat (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapterInit.js:122:21)
at jestAdapter (/Users/lc/Documents/TsCode/01Example/node_modules/jest-circus/build/legacy-code-todo-rewrite/jestAdapter.js:79:19)
at runTestInternal (/Users/lc/Documents/TsCode/01Example/node_modules/jest-runner/build/runTest.js:367:16)
at runTest (/Users/lc/Documents/TsCode/01Example/node_modules/jest-runner/build/runTest.js:444:34)