How to use the expect.any function in expect

pages: ['http://www.bla.com/'],
                                    active: true,
                                })

                                expect(
                                    await customLists(setup).fetchListPagesById(
                                        {
                                            id: listId,
                                        },
                                    ),
                                ).toEqual([
                                    {
                                        listId,
                                        pageUrl: 'bla.com',
                                        fullUrl: 'http://www.bla.com/',
                                        createdAt: expect.any(Date),
                                    },
                                ])

                                // expect(await setup.backgroundModules.search.remoteFunctions.search.searchPages({
                                //     contentTypes: { pages: true, notes: false, highlights: false },
                                //     collections: [listId]
                                // })).toEqual([])
                            },
                        },

postCheck: async ({ setup }) => {
                                expect(
                                    await customLists(setup).fetchListById({
                                        id: listId,
                                    }),
                                ).toEqual({
                                    id: expect.any(Number),
                                    name: 'Updated List Title',
                                    isDeletable: true,
                                    isNestable: true,
                                    createdAt: expect.any(Date),
                                    pages: ['http://www.bla.com/'],
                                    active: true,
                                })

                                expect(
                                    await customLists(setup).fetchListPagesById(
                                        {
                                            id: listId,
                                        },
                                    ),
                                ).toEqual([
                                    {

codeFiles.forEach(file => {
    expect(file.path).toEqual(expect.any(String));
    expect(file.content).toEqual(expect.any(String));
  });
  return codeFiles.filter(code => code.content !== "");

const getCodeFilesFromServer = async socket => {
  const codeFiles = await sendRequest(socket, "GET_CODE");
  expect(codeFiles).toEqual(expect.any(Array));
  codeFiles.forEach(file => {
    expect(file.path).toEqual(expect.any(String));
    expect(file.content).toEqual(expect.any(String));
  });
  return codeFiles.filter(code => code.content !== "");
};