What's the meaning of '@@commandline' from command 'yum list' output.

When I execue command 'yum list', the output list as below:

# yum list installed | grep kpatch-patch
kpatch-patch-3_10_0-1062.x86_64 1-1.el7 @@commandline
…​

And what is the @@commandline meaning from the result, does is have other source types. if so what are these type stand for.