parameter	required	description	default	choices
arch	yes	Buildarch of builds to download from koji		i386 slfsk s; lfks; lksfd; slkf x86_64 noarch src
command	yes	Choose whether to download a single build or an entire tag		tag build
koji_build	yes	Nevr of koji build to download
koji_tag	yes	Name of tag to download from koji
target_dir	yes	Directory in which to download builds	${workdir}