C# How to refer to Azure BLOB storage container in session.Getfiles

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using WinSCP;
using Azure.Storage.Blobs;
 
namespace myCompany.Function
{
    public static class HttpTrigger1
    {
        [FunctionName("HttpTrigger1")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
            ILogger log,  ExecutionContext context)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");
 
            // Test 07-01-2023 Begin
            var BLOBStorageConnectionString = “MyConnectionString”;
            var BLOBStorageContainerName = "returnfiles";
            var container = new BlobContainerClient(BLOBStorageConnectionString,BLOBStorageContainerName);
            var toPath = "C:/returnfiles/";
            // Test 07-01-2023 End
 
            // Setup session options
            SessionOptions sessionOptions = new SessionOptions
            {
                Protocol = Protocol.Sftp,
                HostName = "xxx.xxx.xxx.xxx",
                UserName = "xxxxxx",
                SshHostKeyFingerprint = "ssh-rsa 1024 03:XX:XX>..",
                SshPrivateKeyPath = Path.Combine(context.FunctionAppDirectory,"MyPrivateKey.ppk")
                
            };
                
            using (Session session = new Session())
            {
                session.ExecutablePath = Path.Combine(context.FunctionAppDirectory, "winscp.exe");   
                
                // Connect
                session.Open(sessionOptions);
 
                // Download files
                TransferOptions transferOptions = new TransferOptions();
                transferOptions.TransferMode = TransferMode.Binary;
 
                TransferOperationResult transferResult;
                transferResult =
                    session.GetFiles("/Inbound/NORXXXXXXXXX/*_OUT.*", toPath, false, transferOptions);
 
                // Throw on any error
                transferResult.Check();
 
                // Print results
                foreach (TransferEventArgs transfer in transferResult.Transfers)
                {
                    Console.WriteLine("Download of {0} succeeded", transfer.FileName);
                }
            }
        }
    }
}

using (var sftpFileStream = session.GetFile("/Inbound/NORXXXXXXXXX/filename"))
{
    container.UploadBlob(blobName, sftpFileStream);
}