You can search for identifiers within the package.
in-package search v0.2.0
md5=c0c54de8b55d52c8dbd1f3bd3a8302a2
sha512=2d971df83157cebcc5575c600bddc300f1adda1864168f9d0f6e64617efe4aed3fdfb8bd983b0ea208ebf718f9739831867bf9201f0eb5d0eed7f812f38d522a
build
>= "4.10"
None
>= "2.1.1" & < "2.3" | = "2.7"