withCredentials([[$class: 'AmazonWebServicesCredentialsBinding',
credentialsId: '89h9sfh8shf98shf98he9f8sf',
accessKeyVariable: 'AWS_ACCESS_KEY_ID',
secretKeyVariable: 'AWS_SECRET_ACCESS_KEY']]) {

    sh 'printenv'

    echo myFunc.myMeth('blah','sdjlfkdf')

}

class myFunc {
    static Object myMeth (String param1, String param2){


        def env = System.getenv()
        //Print all the environment variables.
        env.each{
            println it
        }
    }
}