title: How to pass env vars to a MultibranchPipelineJob created by Jenkins Job DSL?
body: <p>I am creating a <a href="https://jenkinsci.github.io/job-dsl-plugin/#method/javaposse.jobdsl.dsl.DslFactory.multibranchPipelineJob" rel="noreferrer">MultibranchPipelineJob</a> with Jenkins Job DSL. I want to pass some environment variables to the job, but I can't figure out how to do that from the <a href="https://jenkinsci.github.io/job-dsl-plugin/#" rel="noreferrer">documentation</a>. </p>