how do I generate dynamic declarative pipeline post stage using JobDSL?

[Kalle Narinen]

hi, I try to create post stage like this. Why is this not working for post definition?

This is the error I get: 
No signature of method: javaposse.jobdsl.dsl.jobs.WorkflowJob.post() is applicable for argument types: (seed_job$_createPipelineJob_closure7$_closure24) values: [seed_job$_createPipelineJob_closure7$_closure24]

def Job job = jobDslContext.pipelineJob("${projectName}/${jobName}")

    job.with {

        description("${jobDescription}")

    }

    job.with {

        definition {

            cps {

                script(jobDslContext.readFileFromWorkspace(templatePath)

                )

                sandbox()

            }

        }

    }

    job.with {

        post {

            always {

                println "always"

            }

        }

    }