How can I make uploadfileasync in mega API

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C#

i am new in C# and this is the first time to me to use this API

i am trying to upload file to me mega Account by C# App

and i succeed in upload but without any progress bar

and the API has this method "UploadFileAsync" but i cant understand every parameter in this method


this is from Object browser in VS

Quote:

IMegaApiClient.UploadFileAsync(string, CG.Web.MegaApiClient.INode, System.IProgress<double>, System.Threading.CancellationToken?)

Quote:

System.Threading.Tasks.Task<cg.web.megaapiclient.inode> UploadFileAsync(string filename, CG.Web.MegaApiClient.INode parent, System.IProgress<double> progress, [System.Threading.CancellationToken? cancellationToken = null])
Member of CG.Web.MegaApiClient.IMegaApiClient

i know filename and INode parent

but
what should i write in "System.IProgress<double> progress"
and cancellationToken

What I have tried:

public uploadFileData uploadToMega(string megaFolderName, string megaFolderID, string filePathOnComputer, string newFileNameOnMega)
        {
            //Implemnt Struct
            uploadFileData myMegaFileData = new uploadFileData();

            //Start Mega Cient
            var myMegaClient = new MegaApiClient();

            //Login To Mega
            myMegaClient.Login(Userrrr, Passss);

            //Get All (File & Folders) in Mega Account
            IEnumerable<INode> nodes = myMegaClient.GetNodes();

            //Creat List Of All Folders In Mega Account
            List<INode> megaFolders = nodes.Where(n => n.Type == NodeType.Directory).ToList();

            //Choose Exist Folder In Mega Account By Name & Id
            INode myFolderOnMega = megaFolders.Where(folder => folder.Name == megaFolderName && folder.Id == megaFolderID).FirstOrDefault();
           

            //Upload The File
            //Normal Upload
            //INode myFile = myMegaClient.UploadFile(filePathOnComputer, myFolderOnMega);

            // Upload With progress bar 
            INode myFile =  myMegaClient.UploadFileAsync(filePathOnComputer, myFolderOnMega, progressBar1, default());


            //Rename The File In Mega Server
            if (string.IsNullOrEmpty(newFileNameOnMega))
            {
                
            }
            else
            {
                myMegaClient.Rename(myFile, newFileNameOnMega);
            }
            
            //Get Download Link
            Uri downloadLink = myMegaClient.GetDownloadLink(myFile);

            myMegaFileData.megaFileId = myFile.Id;
            Clipboard.SetText(myMegaFileData.megaFileId);
            myMegaFileData.megaFileType = myFile.Type.ToString();
            myMegaFileData.megaFileName = myFile.Name;
            myMegaFileData.megaFileOwner = myFile.Owner;
            myMegaFileData.megaFileParentId = myFile.ParentId;
            myMegaFileData.megaFileCreationDate = myFile.CreationDate.ToString();
            myMegaFileData.megaFileModificationDate = myFile.ModificationDate.ToString();
            myMegaFileData.megaFileSize = myFile.Size.ToString();
            myMegaFileData.megaFileDownloadLink = downloadLink.ToString();



            myMegaClient.Logout();



            return myMegaFileData;
        }