src/pkg/cos/testdata/only_build_time_packages.json

{
	"buildTimePackages": [
		{
			"category": "virtual",
			"name": "pkgconfig",
			"version": "123",
			"ebuild_version": "0-r1"
		},
		{
			"category": "dev-go",
			"name": "protobuf",
			"version": "123",
			"ebuild_version": "1.3.2"
		}
	]
}