public Task UploadFile(string sourcePath,
                        string sourceFilename,
                        string sasUri,
                        string contentType,
                        bool append = false)
 {
     return(InnerService.UploadFile(sourcePath, sourceFilename, sasUri, contentType, append));
 }
 public Task UploadFile(string sourcePath,
                        string sourceFilename,
                        string containerName,
                        string targetFilename,
                        string contentType,
                        bool append = false)
 {
     return(InnerService.UploadFile(sourcePath, sourceFilename, containerName, targetFilename, contentType, append));
 }