如何从prepareHeaders访问给定端点的rtk-query切片数据？

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';

const api = createApi({
  baseQuery: fetchBaseQuery({ baseUrl: 'https://api.example.com' }),
  endpoints: (builder) => ({
    // 定义端点
    getUser: builder.query({
      query: () => 'user',
    }),
  }),
});

// prepareHeaders函数
const prepareHeaders = ({ headers, api }) => {
  const endpointDefinition = api.endpoints.getUser; // 获取getUser端点定义
  console.log(endpointDefinition); // 在控制台打印端点定义

  // 根据需要修改headers
  headers['Authorization'] = 'Bearer your_token';
  
  return headers;
};

api.injectEndpoints({
  endpoints: (builder) => ({
    getUser: builder.injectEndpoint(endpointDefinition, {
      // 在getUser端点中添加prepareHeaders
      prepareHeaders,
    }),
  }),
});

const { useGetUserQuery } = api;

// 在组件中使用useGetUserQuery hook获取用户数据
const UserComponent = () => {
  const { data } = useGetUserQuery();
  // 渲染用户数据
};