Downloads the content from Amazon S3 and writes it to the specified file.    
            	If the key is not specified in the request parameter,
            	the file name will used as the key name.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public void Download( TransferUtilityDownloadRequest request )
 Parameters
 Parameters- request (TransferUtilityDownloadRequest)
- Contains all the parameters required to download an Amazon S3 object.