code: function(policyNames) {
    var policies = policyNames.split(' ');   
    for (var i=0; i<policies.length; i++) {
      if (policies[i] in papePolicyNameMap) {
        policies[i] = papePolicyNameMap[policies[i]];
      }
    }
    return policies.join(' ');
  }
docs: /* you can express multiple pape 'preferred_auth_policies', so replace each
  with the full policy URI as per papePolicyNameMapping.