Gets and sets the property InputKey. 
            
            The name of the file to be used as album art. To determine which Amazon S3 bucket
            contains the             specified file, Elastic Transcoder checks the pipeline specified
            by  CopyC#; the
CopyC#; the             PipelineId
 CopyC# object in that
            pipeline identifies the bucket.
CopyC# object in that
            pipeline identifies the bucket.
            InputBucket
            If the file name includes a prefix, for example,  CopyC#,   
                    include the prefix in the key. If the file isn't in the specified bucket,
                        Elastic Transcoder returns an error.
CopyC#,   
                    include the prefix in the key. If the file isn't in the specified bucket,
                        Elastic Transcoder returns an error.
            cooking/pie.jpg
 Declaration Syntax
 Declaration Syntax| C# | 
public string InputKey { get; set; }