axios example does not work

[UROjQ6r80p]

This example from https://ts-rest.com/docs/core/custom does not work.

Where do response.headers come from?
also this.baseUrl

import { contract } from './some-contract';
import axios, { Method, AxiosError, AxiosResponse, isAxiosError } from 'axios';

const client = initClient(contract, {
  baseUrl: 'http://localhost:3333/api',
  baseHeaders: {
    'Content-Type': 'application/json',
  },
  api: async ({ path, method, headers, body }) => {
    const baseUrl = 'http://localhost:3333/api'; //baseUrl is not available as a param, yet
    try {
      const result = await axios.request({
        method: method as Method,
        url: `${this.baseUrl}/${path}`,
        headers,
        data: body,
      });
      return { status: result.status, body: result.data, headers: response.headers };
    } catch (e: Error | AxiosError | any) {
      if (isAxiosError(e)) {
        const error = e as AxiosError;
        const response = error.response as AxiosResponse;
        return { status: response.status, body: response.data, headers: response.headers };
      }
      throw e;
    }
  },
});