The object key prefix to use in the redirect request. For example, to redirect requests for all pages 
            with prefix docs/ (objects in the docs/ folder) to documents/, you can set a condition block with 
            KeyPrefixEquals set to docs/ and in the Redirect set ReplaceKeyPrefixWith to /documents.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public string ReplaceKeyPrefixWith { get; set; }