text: module.exports = (function() {
      const utils = require('./utils')
  
      return {
          available: function(callback) {
              const options = {
                  path: '/v1/service',
                  method: 'GET'
              }
  
              return utils.exec(options, callback)
          },
          default: function(callback) {
              const options = {
                  path: '/v1/service/default',
                  method: 'GET'
              }
  
              return utils.exec(options, callback)
          },
          setDefault: function(serviceId, callback) {
              const options = {
                  path: '/v1/service/default/' + serviceId,
                  method: 'PUT'
              }
  
              return utils.exec(options, callback)
          }
      }
  })()