text: 'use strict';
  
  /* jshint ignore:start */
  /**
   * This code was generated by
   * \ / _    _  _|   _  _
   *  | (_)\/(_)(_|\/| |(/_  v1.0.0
   *       /       /
   */
  /* jshint ignore:end */
  
  var Q = require('q');  /* jshint ignore:line */
  var _ = require('lodash');  /* jshint ignore:line */
  var BindingList = require('./service/binding').BindingList;
  var NotificationList = require('./service/notification').NotificationList;
  var Page = require('../../../base/Page');  /* jshint ignore:line */
  var SegmentList = require('./service/segment').SegmentList;
  var UserList = require('./service/user').UserList;
  var deserialize = require(
      '../../../base/deserialize');  /* jshint ignore:line */
  var serialize = require('../../../base/serialize');  /* jshint ignore:line */
  var values = require('../../../base/values');  /* jshint ignore:line */
  
  var ServiceList;
  var ServicePage;
  var ServiceInstance;
  var ServiceContext;
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Notify.V1.ServiceList
   * @description Initialize the ServiceList
   * PLEASE NOTE that this class contains beta products that are subject to change. Use them with caution.
   *
   * @param {Twilio.Notify.V1} version - Version of the resource
   */
  /* jshint ignore:end */
  ServiceList = function ServiceList(version) {
    /* jshint ignore:start */
    /**
     * @function services
     * @memberof Twilio.Notify.V1
     * @instance
     *
     * @param {string} sid - sid of instance
     *
     * @returns {Twilio.Notify.V1.ServiceContext}
     */
    /* jshint ignore:end */
    function ServiceListInstance(sid) {
      return ServiceListInstance.get(sid);
    }
  
    ServiceListInstance._version = version;
    // Path Solution
    ServiceListInstance._solution = {};
    ServiceListInstance._uri = _.template(
      '/Services' // jshint ignore:line
    )(ServiceListInstance._solution);
    /* jshint ignore:start */
    /**
     * create a ServiceInstance
     *
     * @function create
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {string} [opts.friendlyName] -
     *          Human-readable name for this service instance
     * @param {string} [opts.apnCredentialSid] -
     *          The SID of the Credential to be used for APN Bindings.
     * @param {string} [opts.gcmCredentialSid] -
     *          The SID of the Credential to be used for GCM Bindings.
     * @param {string} [opts.messagingServiceSid] -
     *          The SID of the Messaging Service to be used for SMS Bindings.
     * @param {string} [opts.facebookMessengerPageId] -
     *          The Page ID to be used to send for Facebook Messenger Bindings.
     * @param {string} [opts.defaultApnNotificationProtocolVersion] -
     *          The version of the protocol to be used for sending APNS notifications.
     * @param {string} [opts.defaultGcmNotificationProtocolVersion] -
     *          The version of the protocol to be used for sending GCM notifications.
     * @param {string} [opts.fcmCredentialSid] -
     *          The SID of the Credential to be used for FCM Bindings.
     * @param {string} [opts.defaultFcmNotificationProtocolVersion] -
     *          The version of the protocol to be used for sending FCM notifications.
     * @param {boolean} [opts.logEnabled] - The log_enabled
     * @param {string} [opts.alexaSkillId] - The alexa_skill_id
     * @param {string} [opts.defaultAlexaNotificationProtocolVersion] -
     *          The default_alexa_notification_protocol_version
     * @param {function} [callback] - Callback to handle processed record
     *
     * @returns {Promise} Resolves to processed ServiceInstance
     */
    /* jshint ignore:end */
    ServiceListInstance.create = function create(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
  
      var deferred = Q.defer();
      var data = values.of({
        'FriendlyName': _.get(opts, 'friendlyName'),
        'ApnCredentialSid': _.get(opts, 'apnCredentialSid'),
        'GcmCredentialSid': _.get(opts, 'gcmCredentialSid'),
        'MessagingServiceSid': _.get(opts, 'messagingServiceSid'),
        'FacebookMessengerPageId': _.get(opts, 'facebookMessengerPageId'),
        'DefaultApnNotificationProtocolVersion': _.get(opts, 'defaultApnNotificationProtocolVersion'),
        'DefaultGcmNotificationProtocolVersion': _.get(opts, 'defaultGcmNotificationProtocolVersion'),
        'FcmCredentialSid': _.get(opts, 'fcmCredentialSid'),
        'DefaultFcmNotificationProtocolVersion': _.get(opts, 'defaultFcmNotificationProtocolVersion'),
        'LogEnabled': serialize.bool(_.get(opts, 'logEnabled')),
        'AlexaSkillId': _.get(opts, 'alexaSkillId'),
        'DefaultAlexaNotificationProtocolVersion': _.get(opts, 'defaultAlexaNotificationProtocolVersion')
      });
  
      var promise = this._version.create({uri: this._uri, method: 'POST', data: data});
  
      promise = promise.then(function(payload) {
        deferred.resolve(new ServiceInstance(this._version, payload, this._solution.sid));
      }.bind(this));
  
      promise.catch(function(error) {
        deferred.reject(error);
      });
  
      if (_.isFunction(callback)) {
        deferred.promise.nodeify(callback);
      }
  
      return deferred.promise;
    };
  
    /* jshint ignore:start */
    /**
     * Streams ServiceInstance records from the API.
     *
     * This operation lazily loads records as efficiently as possible until the limit
     * is reached.
     *
     * The results are passed into the callback function, so this operation is memory efficient.
     *
     * If a function is passed as the first argument, it will be used as the callback function.
     *
     * @function each
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {string} [opts.friendlyName] - Filter services by FriendlyName
     * @param {number} [opts.limit] -
     *         Upper limit for the number of records to return.
     *         each() guarantees never to return more than limit.
     *         Default is no limit
     * @param {number} [opts.pageSize=50] -
     *         Number of records to fetch per request,
     *         when not set will use the default value of 50 records.
     *         If no pageSize is defined but a limit is defined,
     *         each() will attempt to read the limit with the most efficient
     *         page size, i.e. min(limit, 1000)
     * @param {Function} [opts.callback] -
     *         Function to process each record. If this and a positional
     * callback are passed, this one will be used
     * @param {Function} [opts.done] -
     *          Function to be called upon completion of streaming
     * @param {Function} [callback] - Function to process each record
     */
    /* jshint ignore:end */
    ServiceListInstance.each = function each(opts, callback) {
      opts = opts || {};
      if (_.isFunction(opts)) {
        opts = { callback: opts };
      } else if (_.isFunction(callback) && !_.isFunction(opts.callback)) {
        opts.callback = callback;
      }
  
      if (_.isUndefined(opts.callback)) {
        throw new Error('Callback function must be provided');
      }
  
      var done = false;
      var currentPage = 1;
      var currentResource = 0;
      var limits = this._version.readLimits({
        limit: opts.limit,
        pageSize: opts.pageSize
      });
  
      function onComplete(error) {
        done = true;
        if (_.isFunction(opts.done)) {
          opts.done(error);
        }
      }
  
      function fetchNextPage(fn) {
        var promise = fn();
        if (_.isUndefined(promise)) {
          onComplete();
          return;
        }
  
        promise.then(function(page) {
          _.each(page.instances, function(instance) {
            if (done || (!_.isUndefined(opts.limit) && currentResource >= opts.limit)) {
              done = true;
              return false;
            }
  
            currentResource++;
            opts.callback(instance, onComplete);
          });
  
          if ((limits.pageLimit && limits.pageLimit <= currentPage)) {
            onComplete();
          } else if (!done) {
            currentPage++;
            fetchNextPage(_.bind(page.nextPage, page));
          }
        });
  
        promise.catch(onComplete);
      }
  
      fetchNextPage(_.bind(this.page, this, _.merge(opts, limits)));
    };
  
    /* jshint ignore:start */
    /**
     * @description Lists ServiceInstance records from the API as a list.
     *
     * If a function is passed as the first argument, it will be used as the callback function.
     *
     * @function list
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {string} [opts.friendlyName] - Filter services by FriendlyName
     * @param {number} [opts.limit] -
     *         Upper limit for the number of records to return.
     *         list() guarantees never to return more than limit.
     *         Default is no limit
     * @param {number} [opts.pageSize] -
     *         Number of records to fetch per request,
     *         when not set will use the default value of 50 records.
     *         If no page_size is defined but a limit is defined,
     *         list() will attempt to read the limit with the most
     *         efficient page size, i.e. min(limit, 1000)
     * @param {function} [callback] - Callback to handle list of records
     *
     * @returns {Promise} Resolves to a list of records
     */
    /* jshint ignore:end */
    ServiceListInstance.list = function list(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
      var deferred = Q.defer();
      var allResources = [];
      opts.callback = function(resource, done) {
        allResources.push(resource);
  
        if (!_.isUndefined(opts.limit) && allResources.length === opts.limit) {
          done();
        }
      };
  
      opts.done = function(error) {
        if (_.isUndefined(error)) {
          deferred.resolve(allResources);
        } else {
          deferred.reject(error);
        }
      };
  
      if (_.isFunction(callback)) {
        deferred.promise.nodeify(callback);
      }
  
      this.each(opts);
      return deferred.promise;
    };
  
    /* jshint ignore:start */
    /**
     * Retrieve a single page of ServiceInstance records from the API.
     * Request is executed immediately
     *
     * If a function is passed as the first argument, it will be used as the callback function.
     *
     * @function page
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {string} [opts.friendlyName] - Filter services by FriendlyName
     * @param {string} [opts.pageToken] - PageToken provided by the API
     * @param {number} [opts.pageNumber] -
     *          Page Number, this value is simply for client state
     * @param {number} [opts.pageSize] - Number of records to return, defaults to 50
     * @param {function} [callback] - Callback to handle list of records
     *
     * @returns {Promise} Resolves to a list of records
     */
    /* jshint ignore:end */
    ServiceListInstance.page = function page(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
  
      var deferred = Q.defer();
      var data = values.of({
        'FriendlyName': _.get(opts, 'friendlyName'),
        'PageToken': opts.pageToken,
        'Page': opts.pageNumber,
        'PageSize': opts.pageSize
      });
  
      var promise = this._version.page({uri: this._uri, method: 'GET', params: data});
  
      promise = promise.then(function(payload) {
        deferred.resolve(new ServicePage(this._version, payload, this._solution));
      }.bind(this));
  
      promise.catch(function(error) {
        deferred.reject(error);
      });
  
      if (_.isFunction(callback)) {
        deferred.promise.nodeify(callback);
      }
  
      return deferred.promise;
    };
  
    /* jshint ignore:start */
    /**
     * Retrieve a single target page of ServiceInstance records from the API.
     * Request is executed immediately
     *
     * If a function is passed as the first argument, it will be used as the callback function.
     *
     * @function getPage
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {string} [opts.friendlyName] - Filter services by FriendlyName
     * @param {string} [targetUrl] - API-generated URL for the requested results page
     * @param {function} [callback] - Callback to handle list of records
     *
     * @returns {Promise} Resolves to a list of records
     */
    /* jshint ignore:end */
    ServiceListInstance.getPage = function getPage(targetUrl, callback) {
      var deferred = Q.defer();
  
      var promise = this._version._domain.twilio.request({method: 'GET', uri: targetUrl});
  
      promise = promise.then(function(payload) {
        deferred.resolve(new ServicePage(this._version, payload, this._solution));
      }.bind(this));
  
      promise.catch(function(error) {
        deferred.reject(error);
      });
  
      if (_.isFunction(callback)) {
        deferred.promise.nodeify(callback);
      }
  
      return deferred.promise;
    };
  
    /* jshint ignore:start */
    /**
     * Constructs a service
     *
     * @function get
     * @memberof Twilio.Notify.V1.ServiceList
     * @instance
     *
     * @param {string} sid - The sid
     *
     * @returns {Twilio.Notify.V1.ServiceContext}
     */
    /* jshint ignore:end */
    ServiceListInstance.get = function get(sid) {
      return new ServiceContext(this._version, sid);
    };
  
    return ServiceListInstance;
  };
  
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Notify.V1.ServicePage
   * @augments Page
   * @description Initialize the ServicePage
   * PLEASE NOTE that this class contains beta products that are subject to change. Use them with caution.
   *
   * @param {Twilio.Notify.V1} version - Version of the resource
   * @param {object} response - Response from the API
   * @param {object} solution - Path solution
   *
   * @returns ServicePage
   */
  /* jshint ignore:end */
  ServicePage = function ServicePage(version, response, solution) {
    // Path Solution
    this._solution = solution;
  
    Page.prototype.constructor.call(this, version, response, this._solution);
  };
  
  _.extend(ServicePage.prototype, Page.prototype);
  ServicePage.prototype.constructor = ServicePage;
  
  /* jshint ignore:start */
  /**
   * Build an instance of ServiceInstance
   *
   * @function getInstance
   * @memberof Twilio.Notify.V1.ServicePage
   * @instance
   *
   * @param {object} payload - Payload response from the API
   *
   * @returns ServiceInstance
   */
  /* jshint ignore:end */
  ServicePage.prototype.getInstance = function getInstance(payload) {
    return new ServiceInstance(this._version, payload);
  };
  
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Notify.V1.ServiceInstance
   * @description Initialize the ServiceContext
   * PLEASE NOTE that this class contains beta products that are subject to change. Use them with caution.
   *
   * @property {string} sid - The sid
   * @property {string} accountSid - The account_sid
   * @property {string} friendlyName - Human-readable name for this service instance
   * @property {Date} dateCreated - The date_created
   * @property {Date} dateUpdated - The date_updated
   * @property {string} apnCredentialSid -
   *          The SID of the Credential to be used for APN Bindings.
   * @property {string} gcmCredentialSid -
   *          The SID of the Credential to be used for GCM Bindings.
   * @property {string} fcmCredentialSid -
   *          The SID of the Credential to be used for FCM Bindings.
   * @property {string} messagingServiceSid -
   *          The SID of the Messaging Service to be used for SMS Bindings.
   * @property {string} facebookMessengerPageId -
   *          The Page ID to be used to send for Facebook Messenger Bindings.
   * @property {string} defaultApnNotificationProtocolVersion -
   *          The version of the protocol to be used for sending APNS notifications.
   * @property {string} defaultGcmNotificationProtocolVersion -
   *          The version of the protocol to be used for sending GCM notifications.
   * @property {string} defaultFcmNotificationProtocolVersion -
   *          The version of the protocol to be used for sending FCM notifications.
   * @property {boolean} logEnabled - The log_enabled
   * @property {string} url - The url
   * @property {string} links - The links
   * @property {string} alexaSkillId - The alexa_skill_id
   * @property {string} defaultAlexaNotificationProtocolVersion -
   *          The default_alexa_notification_protocol_version
   *
   * @param {Twilio.Notify.V1} version - Version of the resource
   * @param {object} payload - The instance payload
   * @param {sid} sid - The sid
   */
  /* jshint ignore:end */
  ServiceInstance = function ServiceInstance(version, payload, sid) {
    this._version = version;
  
    // Marshaled Properties
    this.sid = payload.sid; // jshint ignore:line
    this.accountSid = payload.account_sid; // jshint ignore:line
    this.friendlyName = payload.friendly_name; // jshint ignore:line
    this.dateCreated = deserialize.iso8601DateTime(payload.date_created); // jshint ignore:line
    this.dateUpdated = deserialize.iso8601DateTime(payload.date_updated); // jshint ignore:line
    this.apnCredentialSid = payload.apn_credential_sid; // jshint ignore:line
    this.gcmCredentialSid = payload.gcm_credential_sid; // jshint ignore:line
    this.fcmCredentialSid = payload.fcm_credential_sid; // jshint ignore:line
    this.messagingServiceSid = payload.messaging_service_sid; // jshint ignore:line
    this.facebookMessengerPageId = payload.facebook_messenger_page_id; // jshint ignore:line
    this.defaultApnNotificationProtocolVersion = payload.default_apn_notification_protocol_version; // jshint ignore:line
    this.defaultGcmNotificationProtocolVersion = payload.default_gcm_notification_protocol_version; // jshint ignore:line
    this.defaultFcmNotificationProtocolVersion = payload.default_fcm_notification_protocol_version; // jshint ignore:line
    this.logEnabled = payload.log_enabled; // jshint ignore:line
    this.url = payload.url; // jshint ignore:line
    this.links = payload.links; // jshint ignore:line
    this.alexaSkillId = payload.alexa_skill_id; // jshint ignore:line
    this.defaultAlexaNotificationProtocolVersion = payload.default_alexa_notification_protocol_version; // jshint ignore:line
  
    // Context
    this._context = undefined;
    this._solution = {sid: sid || this.sid, };
  };
  
  Object.defineProperty(ServiceInstance.prototype,
    '_proxy', {
    get: function() {
      if (!this._context) {
        this._context = new ServiceContext(this._version, this._solution.sid);
      }
  
      return this._context;
    }
  });
  
  /* jshint ignore:start */
  /**
   * remove a ServiceInstance
   *
   * @function remove
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.remove = function remove(callback) {
    return this._proxy.remove(callback);
  };
  
  /* jshint ignore:start */
  /**
   * fetch a ServiceInstance
   *
   * @function fetch
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.fetch = function fetch(callback) {
    return this._proxy.fetch(callback);
  };
  
  /* jshint ignore:start */
  /**
   * update a ServiceInstance
   *
   * @function update
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @param {object|function} opts - ...
   * @param {string} [opts.friendlyName] -
   *          Human-readable name for this service instance
   * @param {string} [opts.apnCredentialSid] -
   *          The SID of the default Credential to be used for APN Bindings
   * @param {string} [opts.gcmCredentialSid] -
   *          The SID of the default Credential to be used for GCM Bindings
   * @param {string} [opts.messagingServiceSid] -
   *          The SID of the Messaging Service to be used for SMS Bindings.
   * @param {string} [opts.facebookMessengerPageId] -
   *          The Page ID to be used to send for Facebook Messenger Bindings.
   * @param {string} [opts.defaultApnNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending APNS notifications.
   * @param {string} [opts.defaultGcmNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending GCM notifications.
   * @param {string} [opts.fcmCredentialSid] -
   *          The SID of the default Credential to be used for FCM Bindings
   * @param {string} [opts.defaultFcmNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending FCM notifications.
   * @param {boolean} [opts.logEnabled] - The log_enabled
   * @param {string} [opts.alexaSkillId] - The alexa_skill_id
   * @param {string} [opts.defaultAlexaNotificationProtocolVersion] -
   *          The default_alexa_notification_protocol_version
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.update = function update(opts, callback) {
    return this._proxy.update(opts, callback);
  };
  
  /* jshint ignore:start */
  /**
   * Access the bindings
   *
   * @function bindings
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @returns {Twilio.Notify.V1.ServiceContext.BindingList}
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.bindings = function bindings() {
    return this._proxy.bindings;
  };
  
  /* jshint ignore:start */
  /**
   * Access the notifications
   *
   * @function notifications
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @returns {Twilio.Notify.V1.ServiceContext.NotificationList}
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.notifications = function notifications() {
    return this._proxy.notifications;
  };
  
  /* jshint ignore:start */
  /**
   * Access the users
   *
   * @function users
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @returns {Twilio.Notify.V1.ServiceContext.UserList}
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.users = function users() {
    return this._proxy.users;
  };
  
  /* jshint ignore:start */
  /**
   * Access the segments
   *
   * @function segments
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @returns {Twilio.Notify.V1.ServiceContext.SegmentList}
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.segments = function segments() {
    return this._proxy.segments;
  };
  
  /* jshint ignore:start */
  /**
   * Produce a plain JSON object version of the ServiceInstance for serialization.
   * Removes any circular references in the object.
   *
   * @function toJSON
   * @memberof Twilio.Notify.V1.ServiceInstance
   * @instance
   *
   * @returns Object
   */
  /* jshint ignore:end */
  ServiceInstance.prototype.toJSON = function toJSON() {
    let clone = {};
    _.forOwn(this, function(value, key) {
      if (!_.startsWith(key, '_') && ! _.isFunction(value)) {
        clone[key] = value;
      }
    });
    return clone;
  };
  
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Notify.V1.ServiceContext
   * @description Initialize the ServiceContext
   * PLEASE NOTE that this class contains beta products that are subject to change. Use them with caution.
   *
   * @property {Twilio.Notify.V1.ServiceContext.BindingList} bindings -
   *          bindings resource
   * @property {Twilio.Notify.V1.ServiceContext.NotificationList} notifications -
   *          notifications resource
   * @property {Twilio.Notify.V1.ServiceContext.UserList} users - users resource
   * @property {Twilio.Notify.V1.ServiceContext.SegmentList} segments -
   *          segments resource
   *
   * @param {Twilio.Notify.V1} version - Version of the resource
   * @param {sid} sid - The sid
   */
  /* jshint ignore:end */
  ServiceContext = function ServiceContext(version, sid) {
    this._version = version;
  
    // Path Solution
    this._solution = {sid: sid, };
    this._uri = _.template(
      '/Services/<%= sid %>' // jshint ignore:line
    )(this._solution);
  
    // Dependents
    this._bindings = undefined;
    this._notifications = undefined;
    this._users = undefined;
    this._segments = undefined;
  };
  
  /* jshint ignore:start */
  /**
   * remove a ServiceInstance
   *
   * @function remove
   * @memberof Twilio.Notify.V1.ServiceContext
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceContext.prototype.remove = function remove(callback) {
    var deferred = Q.defer();
    var promise = this._version.remove({uri: this._uri, method: 'DELETE'});
  
    promise = promise.then(function(payload) {
      deferred.resolve(payload);
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  /* jshint ignore:start */
  /**
   * fetch a ServiceInstance
   *
   * @function fetch
   * @memberof Twilio.Notify.V1.ServiceContext
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceContext.prototype.fetch = function fetch(callback) {
    var deferred = Q.defer();
    var promise = this._version.fetch({uri: this._uri, method: 'GET'});
  
    promise = promise.then(function(payload) {
      deferred.resolve(new ServiceInstance(this._version, payload, this._solution.sid));
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  /* jshint ignore:start */
  /**
   * update a ServiceInstance
   *
   * @function update
   * @memberof Twilio.Notify.V1.ServiceContext
   * @instance
   *
   * @param {object|function} opts - ...
   * @param {string} [opts.friendlyName] -
   *          Human-readable name for this service instance
   * @param {string} [opts.apnCredentialSid] -
   *          The SID of the default Credential to be used for APN Bindings
   * @param {string} [opts.gcmCredentialSid] -
   *          The SID of the default Credential to be used for GCM Bindings
   * @param {string} [opts.messagingServiceSid] -
   *          The SID of the Messaging Service to be used for SMS Bindings.
   * @param {string} [opts.facebookMessengerPageId] -
   *          The Page ID to be used to send for Facebook Messenger Bindings.
   * @param {string} [opts.defaultApnNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending APNS notifications.
   * @param {string} [opts.defaultGcmNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending GCM notifications.
   * @param {string} [opts.fcmCredentialSid] -
   *          The SID of the default Credential to be used for FCM Bindings
   * @param {string} [opts.defaultFcmNotificationProtocolVersion] -
   *          The version of the protocol to be used for sending FCM notifications.
   * @param {boolean} [opts.logEnabled] - The log_enabled
   * @param {string} [opts.alexaSkillId] - The alexa_skill_id
   * @param {string} [opts.defaultAlexaNotificationProtocolVersion] -
   *          The default_alexa_notification_protocol_version
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ServiceInstance
   */
  /* jshint ignore:end */
  ServiceContext.prototype.update = function update(opts, callback) {
    if (_.isFunction(opts)) {
      callback = opts;
      opts = {};
    }
    opts = opts || {};
  
    var deferred = Q.defer();
    var data = values.of({
      'FriendlyName': _.get(opts, 'friendlyName'),
      'ApnCredentialSid': _.get(opts, 'apnCredentialSid'),
      'GcmCredentialSid': _.get(opts, 'gcmCredentialSid'),
      'MessagingServiceSid': _.get(opts, 'messagingServiceSid'),
      'FacebookMessengerPageId': _.get(opts, 'facebookMessengerPageId'),
      'DefaultApnNotificationProtocolVersion': _.get(opts, 'defaultApnNotificationProtocolVersion'),
      'DefaultGcmNotificationProtocolVersion': _.get(opts, 'defaultGcmNotificationProtocolVersion'),
      'FcmCredentialSid': _.get(opts, 'fcmCredentialSid'),
      'DefaultFcmNotificationProtocolVersion': _.get(opts, 'defaultFcmNotificationProtocolVersion'),
      'LogEnabled': serialize.bool(_.get(opts, 'logEnabled')),
      'AlexaSkillId': _.get(opts, 'alexaSkillId'),
      'DefaultAlexaNotificationProtocolVersion': _.get(opts, 'defaultAlexaNotificationProtocolVersion')
    });
  
    var promise = this._version.update({uri: this._uri, method: 'POST', data: data});
  
    promise = promise.then(function(payload) {
      deferred.resolve(new ServiceInstance(this._version, payload, this._solution.sid));
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  Object.defineProperty(ServiceContext.prototype,
    'bindings', {
    get: function() {
      if (!this._bindings) {
        this._bindings = new BindingList(this._version, this._solution.sid);
      }
      return this._bindings;
    }
  });
  
  Object.defineProperty(ServiceContext.prototype,
    'notifications', {
    get: function() {
      if (!this._notifications) {
        this._notifications = new NotificationList(this._version, this._solution.sid);
      }
      return this._notifications;
    }
  });
  
  Object.defineProperty(ServiceContext.prototype,
    'users', {
    get: function() {
      if (!this._users) {
        this._users = new UserList(this._version, this._solution.sid);
      }
      return this._users;
    }
  });
  
  Object.defineProperty(ServiceContext.prototype,
    'segments', {
    get: function() {
      if (!this._segments) {
        this._segments = new SegmentList(this._version, this._solution.sid);
      }
      return this._segments;
    }
  });
  
  module.exports = {
    ServiceList: ServiceList,
    ServicePage: ServicePage,
    ServiceInstance: ServiceInstance,
    ServiceContext: ServiceContext
  };
  