```typescript
export interface AxiosInstance {
  (config: AxiosRequestConfig): AxiosPromise;
  (url: string, config?: AxiosRequestConfig): AxiosPromise;
  defaults: AxiosRequestConfig;
  interceptors: {
    request: AxiosInterceptorManager<AxiosRequestConfig>;
    response: AxiosInterceptorManager<AxiosResponse>;
  };
  request<T = any>(config: AxiosRequestConfig): AxiosPromise<T>;
  get<T = any>(url: string, config?: AxiosRequestConfig): AxiosPromise<T>;
  delete(url: string, config?: AxiosRequestConfig): AxiosPromise;
  head(url: string, config?: AxiosRequestConfig): AxiosPromise;
  post<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
  put<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
  patch<T = any>(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise<T>;
}
```



This is missing a line which should be
  `options(url: string, config?: AxiosRequestConfig): AxiosPromise;`

test/typescript/axios.ts
axios.interceptors.request.use((config: AxiosRequestConfig) => config);
axios.interceptors.request.use((config: AxiosRequestConfig) => Promise.resolve(config));
const responseInterceptorId: number = axios.interceptors.response.use(
  (response: AxiosResponse) => response,
  (error: any) => Promise.reject(error)
);
axios.interceptors.response.eject(responseInterceptorId);
axios.interceptors.response.use(
  (response: AxiosResponse) => Promise.resolve(response),
  (error: any) => Promise.reject(error)
);
axios.interceptors.response.use((response: AxiosResponse) => response);
axios.interceptors.response.use((response: AxiosResponse) => Promise.resolve(response));
const adapter: AxiosAdapter = (config: AxiosRequestConfig) => {
  const response: AxiosResponse = {
    data: { foo: 'bar' },
    status: 200,
    statusText: 'OK',
    headers: { 'X-FOO': 'bar' },
    config
  };
  return Promise.resolve(response);
};
axios.defaults.adapter = adapter;
const promises = [
  Promise.resolve(1),
  Promise.resolve(2)
];
const promise: Promise<number[]> = axios.all(promises);
const fn1 = (a: number, b: number, c: number) => `${a}-${b}-${c}`;