requestMultipart method Null safety

  1. @override
Future<void> requestMultipart(
  1. String method,
  2. Uri uri,
  3. Map<String, String>? headers,
  4. Map<String, String>? fields,
  5. List<MultipartFile>? files,
  6. HttpCallback? callback
)
override

Request multipart at uri with headers, fields and files.