Can I use ivy branch attribute with Gradle 2.0

Gradle 2.0 talks about using other ivy metadata. But I couldn’t make adding branch attribute work. As shown below ivy {

url ‘http://buildserver:8081/artifactory/repo

layout ‘pattern’, {

artifact ‘[organisation]/[module]/[branch]/[revision]/[artifact].[ext]’

}

}

compile(group: ‘org.coastal’, name: ‘chopper’, version: ‘latest.integration’) {

branch = ‘trunk’ }

Any ideas?