selectors.example.test.js

// selectors.js
export const selectLogin = (state: AppStateT) => state.login;

export const selectAuthenticated = createSelector(
  selectLogin,
  (loginState: LoginStateT) => loginState.authenticated
);

// selectors.test.js
import { type } from 'ramda';

import {
  selectAuthenticated,
} from '../login.selectors';

describe('Login Selectors', () => {
  describe('selectAuthenticated', () => {
    it('should return login.authenticated as boolean', () => {
      mockParameters = {
        login: {
          authenticated: false,
          authenticating: false,
        },
      };
      const selected = selectAuthenticated.resultFunc(mockParameters.login);
      expect(type(selected)).toEqual('Boolean');
    });
  });
});

In this example what are the type definitions for AppStateT and LoginStateT?