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 util = require('util');  /* jshint ignore:line */
  var Page = require('../../../../../base/Page');  /* jshint ignore:line */
  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 SyncMapItemList;
  var SyncMapItemPage;
  var SyncMapItemInstance;
  var SyncMapItemContext;
  
  /* jshint ignore:start */
  /**
   * Initialize the SyncMapItemList
   *
   * PLEASE NOTE that this class contains beta products that are subject to change.
   * Use them with caution.
   *
   * @constructor Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList
   *
   * @param {Twilio.Sync.V1} version - Version of the resource
   * @param {string} serviceSid -
   *          The unique SID identifier of the Service Instance that hosts this Map object.
   * @param {string} mapSid -
   *          The unique 34-character SID identifier of the Map containing this Item.
   */
  /* jshint ignore:end */
  SyncMapItemList = function SyncMapItemList(version, serviceSid, mapSid) {
    /* jshint ignore:start */
    /**
     * @function syncMapItems
     * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext#
     *
     * @param {string} sid - sid of instance
     *
     * @returns {Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext}
     */
    /* jshint ignore:end */
    function SyncMapItemListInstance(sid) {
      return SyncMapItemListInstance.get(sid);
    }
  
    SyncMapItemListInstance._version = version;
    // Path Solution
    SyncMapItemListInstance._solution = {serviceSid: serviceSid, mapSid: mapSid};
    SyncMapItemListInstance._uri = _.template(
      '/Services/<%= serviceSid %>/Maps/<%= mapSid %>/Items' // jshint ignore:line
    )(SyncMapItemListInstance._solution);
    /* jshint ignore:start */
    /**
     * create a SyncMapItemInstance
     *
     * @function create
     * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @param {object} opts - Options for request
     * @param {string} opts.key - The unique user-defined key of this Map Item.
     * @param {string} opts.data -
     *          Contains arbitrary user-defined, schema-less data that this Map Item stores, represented by a JSON object, up to 16KB.
     * @param {number} [opts.ttl] - Alias for item_ttl
     * @param {number} [opts.itemTtl] -
     *          Time-to-live of this item in seconds, defaults to no expiration.
     * @param {number} [opts.collectionTtl] -
     *          Time-to-live of this item's parent Map in seconds, defaults to no expiration.
     * @param {function} [callback] - Callback to handle processed record
     *
     * @returns {Promise} Resolves to processed SyncMapItemInstance
     */
    /* jshint ignore:end */
    SyncMapItemListInstance.create = function create(opts, callback) {
      if (_.isUndefined(opts)) {
        throw new Error('Required parameter "opts" missing.');
      }
      if (_.isUndefined(opts.key)) {
        throw new Error('Required parameter "opts.key" missing.');
      }
      if (_.isUndefined(opts.data)) {
        throw new Error('Required parameter "opts.data" missing.');
      }
  
      var deferred = Q.defer();
      var data = values.of({
        'Key': _.get(opts, 'key'),
        'Data': serialize.object(_.get(opts, 'data')),
        'Ttl': _.get(opts, 'ttl'),
        'ItemTtl': _.get(opts, 'itemTtl'),
        'CollectionTtl': _.get(opts, 'collectionTtl')
      });
  
      var promise = this._version.create({uri: this._uri, method: 'POST', data: data});
  
      promise = promise.then(function(payload) {
        deferred.resolve(new SyncMapItemInstance(
          this._version,
          payload,
          this._solution.serviceSid,
          this._solution.mapSid,
          this._solution.key
        ));
      }.bind(this));
  
      promise.catch(function(error) {
        deferred.reject(error);
      });
  
      if (_.isFunction(callback)) {
        deferred.promise.nodeify(callback);
      }
  
      return deferred.promise;
    };
  
    /* jshint ignore:start */
    /**
     * Streams SyncMapItemInstance 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.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @param {object} [opts] - Options for request
     * @param {sync_map_item.query_result_order} [opts.order] -
     *          A string; asc or desc. Map Items are ordered lexicographically by Item key.
     * @param {string} [opts.from] - The Item key offset (including the specified key).
     * @param {sync_map_item.query_from_bound_type} [opts.bounds] - The bounds
     * @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] -
     *         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 */
    SyncMapItemListInstance.each = function each(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
      if (opts.callback) {
        callback = opts.callback;
      }
      if (_.isUndefined(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++;
            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 */
    /**
     * Lists SyncMapItemInstance 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.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @param {object} [opts] - Options for request
     * @param {sync_map_item.query_result_order} [opts.order] -
     *          A string; asc or desc. Map Items are ordered lexicographically by Item key.
     * @param {string} [opts.from] - The Item key offset (including the specified key).
     * @param {sync_map_item.query_from_bound_type} [opts.bounds] - The bounds
     * @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 */
    SyncMapItemListInstance.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 SyncMapItemInstance records from the API.
     *
     * The 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.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @param {object} [opts] - Options for request
     * @param {sync_map_item.query_result_order} [opts.order] -
     *          A string; asc or desc. Map Items are ordered lexicographically by Item key.
     * @param {string} [opts.from] - The Item key offset (including the specified key).
     * @param {sync_map_item.query_from_bound_type} [opts.bounds] - The bounds
     * @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 */
    SyncMapItemListInstance.page = function page(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
  
      var deferred = Q.defer();
      var data = values.of({
        'Order': _.get(opts, 'order'),
        'From': _.get(opts, 'from'),
        'Bounds': _.get(opts, 'bounds'),
        '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 SyncMapItemPage(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 SyncMapItemInstance records from the API.
     *
     * The 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.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @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 */
    SyncMapItemListInstance.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 SyncMapItemPage(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 sync_map_item
     *
     * @function get
     * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @param {string} key - The key
     *
     * @returns {Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext}
     */
    /* jshint ignore:end */
    SyncMapItemListInstance.get = function get(key) {
      return new SyncMapItemContext(this._version, this._solution.serviceSid, this._solution.mapSid, key);
    };
  
    /* jshint ignore:start */
    /**
     * Provide a user-friendly representation
     *
     * @function toJSON
     * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemList#
     *
     * @returns Object
     */
    /* jshint ignore:end */
    SyncMapItemListInstance.toJSON = function toJSON() {
      return this._solution;
    };
  
    SyncMapItemListInstance[util.inspect.custom] = function inspect(depth, options)
        {
      return util.inspect(this.toJSON(), options);
    };
  
    return SyncMapItemListInstance;
  };
  
  
  /* jshint ignore:start */
  /**
   * Initialize the SyncMapItemPage
   *
   * PLEASE NOTE that this class contains beta products that are subject to change.
   * Use them with caution.
   *
   * @constructor Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemPage
   *
   * @param {V1} version - Version of the resource
   * @param {Response<string>} response - Response from the API
   * @param {SyncMapItemSolution} solution - Path solution
   *
   * @returns SyncMapItemPage
   */
  /* jshint ignore:end */
  SyncMapItemPage = function SyncMapItemPage(version, response, solution) {
    // Path Solution
    this._solution = solution;
  
    Page.prototype.constructor.call(this, version, response, this._solution);
  };
  
  _.extend(SyncMapItemPage.prototype, Page.prototype);
  SyncMapItemPage.prototype.constructor = SyncMapItemPage;
  
  /* jshint ignore:start */
  /**
   * Build an instance of SyncMapItemInstance
   *
   * @function getInstance
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemPage#
   *
   * @param {SyncMapItemPayload} payload - Payload response from the API
   *
   * @returns SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemPage.prototype.getInstance = function getInstance(payload) {
    return new SyncMapItemInstance(
      this._version,
      payload,
      this._solution.serviceSid,
      this._solution.mapSid
    );
  };
  
  /* jshint ignore:start */
  /**
   * Provide a user-friendly representation
   *
   * @function toJSON
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemPage#
   *
   * @returns Object
   */
  /* jshint ignore:end */
  SyncMapItemPage.prototype.toJSON = function toJSON() {
    let clone = {};
    _.forOwn(this, function(value, key) {
      if (!_.startsWith(key, '_') && ! _.isFunction(value)) {
        clone[key] = value;
      }
    });
    return clone;
  };
  
  SyncMapItemPage.prototype[util.inspect.custom] = function inspect(depth,
      options) {
    return util.inspect(this.toJSON(), options);
  };
  
  
  /* jshint ignore:start */
  /**
   * Initialize the SyncMapItemContext
   *
   * PLEASE NOTE that this class contains beta products that are subject to change.
   * Use them with caution.
   *
   * @constructor Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemInstance
   *
   * @property {string} key - The unique user-defined key of this Map Item.
   * @property {string} accountSid - The unique SID identifier of the Twilio Account.
   * @property {string} serviceSid -
   *          The unique SID identifier of the Service Instance that hosts this Map object.
   * @property {string} mapSid -
   *          The unique 34-character SID identifier of the Map containing this Item.
   * @property {string} url - The absolute URL for this Map.
   * @property {string} revision -
   *          Contains the current revision of this Map, represented by a string identifier.
   * @property {string} data -
   *          Contains arbitrary user-defined, schema-less data that this Map Item stores, represented by a JSON object, up to 16KB.
   * @property {Date} dateExpires -
   *          Contains the date this Map expires and gets deleted automatically.
   * @property {Date} dateCreated -
   *          The date this Map was created, given in UTC ISO 8601 format.
   * @property {Date} dateUpdated -
   *          Specifies the date this Map was last updated, given in UTC ISO 8601 format.
   * @property {string} createdBy - The identity of the Map creator.
   *
   * @param {V1} version - Version of the resource
   * @param {SyncMapItemPayload} payload - The instance payload
   * @param {sid} serviceSid -
   *          The unique SID identifier of the Service Instance that hosts this Map object.
   * @param {sid} mapSid -
   *          The unique 34-character SID identifier of the Map containing this Item.
   * @param {string} key - The key
   */
  /* jshint ignore:end */
  SyncMapItemInstance = function SyncMapItemInstance(version, payload, serviceSid,
                                                      mapSid, key) {
    this._version = version;
  
    // Marshaled Properties
    this.key = payload.key; // jshint ignore:line
    this.accountSid = payload.account_sid; // jshint ignore:line
    this.serviceSid = payload.service_sid; // jshint ignore:line
    this.mapSid = payload.map_sid; // jshint ignore:line
    this.url = payload.url; // jshint ignore:line
    this.revision = payload.revision; // jshint ignore:line
    this.data = payload.data; // jshint ignore:line
    this.dateExpires = deserialize.iso8601DateTime(payload.date_expires); // jshint ignore:line
    this.dateCreated = deserialize.iso8601DateTime(payload.date_created); // jshint ignore:line
    this.dateUpdated = deserialize.iso8601DateTime(payload.date_updated); // jshint ignore:line
    this.createdBy = payload.created_by; // jshint ignore:line
  
    // Context
    this._context = undefined;
    this._solution = {serviceSid: serviceSid, mapSid: mapSid, key: key || this.key, };
  };
  
  Object.defineProperty(SyncMapItemInstance.prototype,
    '_proxy', {
    get: function() {
      if (!this._context) {
        this._context = new SyncMapItemContext(
          this._version,
          this._solution.serviceSid,
          this._solution.mapSid,
          this._solution.key
        );
      }
  
      return this._context;
    }
  });
  
  /* jshint ignore:start */
  /**
   * fetch a SyncMapItemInstance
   *
   * @function fetch
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemInstance#
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemInstance.prototype.fetch = function fetch(callback) {
    return this._proxy.fetch(callback);
  };
  
  /* jshint ignore:start */
  /**
   * remove a SyncMapItemInstance
   *
   * @function remove
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemInstance#
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemInstance.prototype.remove = function remove(callback) {
    return this._proxy.remove(callback);
  };
  
  /* jshint ignore:start */
  /**
   * update a SyncMapItemInstance
   *
   * @function update
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemInstance#
   *
   * @param {object} [opts] - Options for request
   * @param {string} [opts.data] -
   *          Contains an arbitrary JSON object to be stored in this Map Item.
   * @param {number} [opts.ttl] - Alias for item_ttl
   * @param {number} [opts.itemTtl] -
   *          Time-to-live of this item in seconds, defaults to no expiration.
   * @param {number} [opts.collectionTtl] -
   *          Time-to-live of this item's parent Map in seconds, defaults to no expiration.
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemInstance.prototype.update = function update(opts, callback) {
    return this._proxy.update(opts, callback);
  };
  
  /* jshint ignore:start */
  /**
   * Provide a user-friendly representation
   *
   * @function toJSON
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemInstance#
   *
   * @returns Object
   */
  /* jshint ignore:end */
  SyncMapItemInstance.prototype.toJSON = function toJSON() {
    let clone = {};
    _.forOwn(this, function(value, key) {
      if (!_.startsWith(key, '_') && ! _.isFunction(value)) {
        clone[key] = value;
      }
    });
    return clone;
  };
  
  SyncMapItemInstance.prototype[util.inspect.custom] = function inspect(depth,
      options) {
    return util.inspect(this.toJSON(), options);
  };
  
  
  /* jshint ignore:start */
  /**
   * Initialize the SyncMapItemContext
   *
   * PLEASE NOTE that this class contains beta products that are subject to change.
   * Use them with caution.
   *
   * @constructor Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext
   *
   * @param {V1} version - Version of the resource
   * @param {sid_like} serviceSid - The service_sid
   * @param {sid_like} mapSid - The map_sid
   * @param {string} key - The key
   */
  /* jshint ignore:end */
  SyncMapItemContext = function SyncMapItemContext(version, serviceSid, mapSid,
                                                    key) {
    this._version = version;
  
    // Path Solution
    this._solution = {serviceSid: serviceSid, mapSid: mapSid, key: key, };
    this._uri = _.template(
      '/Services/<%= serviceSid %>/Maps/<%= mapSid %>/Items/<%= key %>' // jshint ignore:line
    )(this._solution);
  };
  
  /* jshint ignore:start */
  /**
   * fetch a SyncMapItemInstance
   *
   * @function fetch
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext#
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemContext.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 SyncMapItemInstance(
        this._version,
        payload,
        this._solution.serviceSid,
        this._solution.mapSid,
        this._solution.key
      ));
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  /* jshint ignore:start */
  /**
   * remove a SyncMapItemInstance
   *
   * @function remove
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext#
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemContext.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 */
  /**
   * update a SyncMapItemInstance
   *
   * @function update
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext#
   *
   * @param {object} [opts] - Options for request
   * @param {string} [opts.data] -
   *          Contains an arbitrary JSON object to be stored in this Map Item.
   * @param {number} [opts.ttl] - Alias for item_ttl
   * @param {number} [opts.itemTtl] -
   *          Time-to-live of this item in seconds, defaults to no expiration.
   * @param {number} [opts.collectionTtl] -
   *          Time-to-live of this item's parent Map in seconds, defaults to no expiration.
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed SyncMapItemInstance
   */
  /* jshint ignore:end */
  SyncMapItemContext.prototype.update = function update(opts, callback) {
    if (_.isFunction(opts)) {
      callback = opts;
      opts = {};
    }
    opts = opts || {};
  
    var deferred = Q.defer();
    var data = values.of({
      'Data': serialize.object(_.get(opts, 'data')),
      'Ttl': _.get(opts, 'ttl'),
      'ItemTtl': _.get(opts, 'itemTtl'),
      'CollectionTtl': _.get(opts, 'collectionTtl')
    });
  
    var promise = this._version.update({uri: this._uri, method: 'POST', data: data});
  
    promise = promise.then(function(payload) {
      deferred.resolve(new SyncMapItemInstance(
        this._version,
        payload,
        this._solution.serviceSid,
        this._solution.mapSid,
        this._solution.key
      ));
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  /* jshint ignore:start */
  /**
   * Provide a user-friendly representation
   *
   * @function toJSON
   * @memberof Twilio.Sync.V1.ServiceContext.SyncMapContext.SyncMapItemContext#
   *
   * @returns Object
   */
  /* jshint ignore:end */
  SyncMapItemContext.prototype.toJSON = function toJSON() {
    return this._solution;
  };
  
  SyncMapItemContext.prototype[util.inspect.custom] = function inspect(depth,
      options) {
    return util.inspect(this.toJSON(), options);
  };
  
  module.exports = {
    SyncMapItemList: SyncMapItemList,
    SyncMapItemPage: SyncMapItemPage,
    SyncMapItemInstance: SyncMapItemInstance,
    SyncMapItemContext: SyncMapItemContext
  };
  