如何修复redux-可观察参数'action$‘隐式具有'any’类型

export interface FetchDataAction {
  type: 'FETCH_DATA';
  payload: {
    // 定义payload的类型
  };
}

export interface UpdateDataAction {
  type: 'UPDATE_DATA';
  payload: {
    // 定义payload的类型
  };
}

// 其他action类型...

import { Action } from 'redux';
import { FetchDataAction, UpdateDataAction } from './actions';

const reducer = (state: State, action: Action) => {
  switch (action.type) {
    case 'FETCH_DATA':
      const fetchDataAction = action as FetchDataAction;
      // 处理FETCH_DATA action
      break;
    case 'UPDATE_DATA':
      const updateDataAction = action as UpdateDataAction;
      // 处理UPDATE_DATA action
      break;
    // 其他case...
    default:
      return state;
  }
};

import { Observable } from 'rxjs';
import { Action } from 'redux';
import { FetchDataAction, UpdateDataAction } from './actions';

const epic = (action$: Observable<Action>) => {
  return action$.pipe(
    // 使用类型断言将action$转换为明确的类型
    switchMap((action: Action) => {
      switch (action.type) {
        case 'FETCH_DATA':
          const fetchDataAction = action as FetchDataAction;
          // 处理FETCH_DATA action
          break;
        case 'UPDATE_DATA':
          const updateDataAction = action as UpdateDataAction;
          // 处理UPDATE_DATA action
          break;
        // 其他case...
      }
    })
  );
};