getMultiPartImage method
This function is used for convert image file to Multipart to uplaod using Dio
Implementation
Future<MultipartFile>? getMultiPartImage(File file) async {
var pic = await MultipartFile.fromFile(file.path,
filename: file.path.split("/").last,
contentType:
httparser.MediaType.parse("image/${file.path.split(".").last}"));
return pic;
}