[TypeScript] response.headers.hasContentType() raises 2 illegitimate TS errors

[OlivierZal]

Describe the bug

response.headers.hasContentType() (where response: axios.AxiosResponse<any, any>) raises 2 illegitimate TS errors although this expression works as expected:

Cannot invoke an object which is possibly 'null' or 'undefined'. ts(2723)

This expression is not callable. ts(2349)
  Not all constituents of type 'string | number | boolean | AxiosHeaders | string[] | ((matcher?: AxiosHeaderMatcher | undefined) => boolean)' are callable.
    Type 'string' has no call signatures.

To Reproduce

e.g. https://codesandbox.io/p/devbox/lucid-dawn-82cn7d

• Run tsc in a Terminal to raise the TS errors.
• Run node src/index.js to confirm that the code works.

Code snippet

import axios from "axios";
const response = await axios.post("http://httpbin.org/post", { x: 1 });

console.log(response.headers.hasContentType("application/json"));
console.log(response.headers.hasContentType("application/xml"));

Expected behavior

response.headers.hasContentType() (where response: axios.AxiosResponse<any, any>) shouldn't raise any TS error and be recognized as a boolean by TypeScript.

Axios Version

1.6.7

Adapter Version

No response

Browser

No response

Browser Version

No response

Node.js Version

21.6.2

OS

No response

Additional Library Versions

TypeScript 5.3.3

Additional context/Screenshots

No response