private async Task<bool> Upload(RequestHeader header, ICollection<ClientFile> files, LogMethod method)
{
var package = await _packageHelper.PackAsync(files);
var context = method.ToString();
this.LogRequest(context);
await this.TransferHandler.WriteAsync(this.Id, (byte)method);
var data = Utilities.Concat(header.NetworkBuffer, package);
this.LogRequest(data, context);
await this.TransferHandler.WriteAsync(data);
var bytes = await this.TransferHandler.ReadAsync();
this.LogResponse(bytes, context);
return Convert.ToBoolean(BitConverter.ToInt32(bytes, 0));
}