getDioClient static method 
    
    
    
  Implementation
  static Dio getDioClient({
  Duration? receiveTimeout,
  Duration? sendTimeout,
  Duration? connectTimeout,
  String baseUrl = '',
  Map<String, dynamic>? headers,
  List<Interceptor>? interceptors,
  List<int>? trustedCertificateBytes,
  List<String>? allowedFingerprints,
}) {
  assert(trustedCertificateBytes == null || allowedFingerprints == null);
  final dio = Dio(
    BaseOptions(
      receiveTimeout: receiveTimeout,
      sendTimeout: sendTimeout,
      connectTimeout: connectTimeout,
      baseUrl: baseUrl,
      headers: headers,
    ),
  );
  if (trustedCertificateBytes != null) {
    (dio.httpClientAdapter as IOHttpClientAdapter).createHttpClient = () {
      final securityContext = SecurityContext();
      securityContext.setTrustedCertificatesBytes(trustedCertificateBytes);
      final httpClient = HttpClient(context: securityContext);
      return httpClient;
    };
  }
  if (interceptors != null) {
    dio.interceptors.addAll(interceptors);
  }
  if (allowedFingerprints != null) {
    dio.interceptors.add(AllowedSSLFingerprintInterceptor(allowedSHAFingerprints: allowedFingerprints));
  }
  return dio;
}