The type of output that a bundling operation is producing.
The bundling output directory includes a single .zip or .jar file which will be used as the final bundle. If the output directory does not include exactly a single archive, bundling will fail.
If the bundling output directory contains a single archive file (zip or jar) it will be used as the bundle output as-is.
Otherwise all the files in the bundling output directory will be zipped.
The bundling output directory contains one or more files which will be archived and uploaded as a .zip file to S3.