jenkinsfile create parameter in job

Jenkinsfile.groovy

pipeline {

  parameters {
    choice(
      name: 'super_choices',
      choices: 'alpha\nbravo\ncharlie',
      description: 'its time to choose, default is alpha'
    )
    stage("Prepare env") {
      steps {
          sh "echo ${params.super_choice}"
      }
	}
}