init method
Implementation
init({Dio? dio}) {
this.dio = dio ??
Dio(BaseOptions(
baseUrl: '',
connectTimeout: Duration(seconds: 15),
receiveTimeout: Duration(seconds: 15),
responseType: ResponseType.json));
this.dio.interceptors.add(Loading());
this.dio.interceptors.add(Cache());
this.dio.interceptors.add(Log());
}