How to use the redux-saga.takeLatest function in redux-saga

function* asyncSellPostFetchWatcher() {
    // use takeLatest instead of take every, so double click in short time will not trigger more fork
    yield [
      takeEvery('app/updateSellPost', requestUpdateSellPostAsync),      
      takeLatest('app/getSellPost', requestGetSellPostAsync),
      takeLatest('app/getSellPosts', requestGetSellPostsAsync),
      takeEvery('app/deleteSellPost', requestDeleteSellPostsAsync),
    ]
  }
]

function* asyncLoginFetchWatcher() {
    // use takeLatest instead of take every, so double click in short time will not trigger more fork
    yield [      
      takeLatest('app/loginFacebook', requestLoginFacebookAsync),
      takeLatest('app/loginGoogle', requestLoginGoogleAsync),
      takeLatest('app/login', requestLoginAsync),
    ]
  },

export default function * root () {
  yield [
    // some sagas only receive an action
    takeLatest(StartupTypes.STARTUP, startup),
    takeLatest(LoginTypes.LOGIN_REQUEST, login),
    takeLatest(OpenScreenTypes.OPEN_SCREEN, openScreen),

    // some sagas receive extra parameters in addition to an action
    takeLatest(TemperatureTypes.TEMPERATURE_REQUEST, getTemperature, api)
  ]
}

function* sagaOfSaga(): Generator {
    yield* takeLatest('Foo', saga0);
  }

function* watchFetchMovieRecent() {
  yield* takeLatest(ActionTypes.FETCH_MOVIE_RECENT_REQUEST, fetchMovieRecentSage)
}

function * pgpSaga (): SagaGenerator {
  yield [
    takeLatest(a => (a && a.type === Constants.updatePgpInfo && !a.error), checkPgpInfo),
    takeLatest(Constants.generatePgp, generatePgpSaga),
    takeEvery(Constants.dropPgp, dropPgpSaga),
  ]
}

export default function *rootSaga(client) {
  yield [
    takeLatest(GITHUB_HOTTEST_LOAD, loadHottestSaga, client)
  ];
}

export function* loginSucceedWatcher() {
  yield* takeLatest(types.LOGIN_SUCCEED, loginSucceedSaga);
}