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 InviteList = require('./channel/invite').InviteList;
  var MemberList = require('./channel/member').MemberList;
  var MessageList = require('./channel/message').MessageList;
  var Page = require('../../../../base/Page');  /* jshint ignore:line */
  var WebhookList = require('./channel/webhook').WebhookList;
  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 ChannelList;
  var ChannelPage;
  var ChannelInstance;
  var ChannelContext;
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Chat.V2.ServiceContext.ChannelList
   * @description Initialize the ChannelList
   *
   * @param {Twilio.Chat.V2} version - Version of the resource
   * @param {string} serviceSid -
   *          The unique id of the Service this channel belongs to.
   */
  /* jshint ignore:end */
  ChannelList = function ChannelList(version, serviceSid) {
    /* jshint ignore:start */
    /**
     * @function channels
     * @memberof Twilio.Chat.V2.ServiceContext
     * @instance
     *
     * @param {string} sid - sid of instance
     *
     * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext}
     */
    /* jshint ignore:end */
    function ChannelListInstance(sid) {
      return ChannelListInstance.get(sid);
    }
  
    ChannelListInstance._version = version;
    // Path Solution
    ChannelListInstance._solution = {serviceSid: serviceSid};
    ChannelListInstance._uri = _.template(
      '/Services/<%= serviceSid %>/Channels' // jshint ignore:line
    )(ChannelListInstance._solution);
    /* jshint ignore:start */
    /**
     * create a ChannelInstance
     *
     * @function create
     * @memberof Twilio.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {string} [opts.friendlyName] - A human-readable name for the Channel.
     * @param {string} [opts.uniqueName] - A unique, addressable name for the Channel.
     * @param {string} [opts.attributes] -
     *          An optional metadata field you can use to store any data you wish.
     * @param {channel.channel_type} [opts.type] -
     *          The visibility of the channel - public or private.
     * @param {Date} [opts.dateCreated] -
     *          The optional ISO8601 time specifying the datetime the Channel should be set as being created.
     * @param {Date} [opts.dateUpdated] -
     *          The optional ISO8601 time specifying the datetime the Channel should be set as having been last updated.
     * @param {string} [opts.createdBy] -
     *          Optional field to specify the Identity of the User that created the Channel.
     * @param {function} [callback] - Callback to handle processed record
     *
     * @returns {Promise} Resolves to processed ChannelInstance
     */
    /* jshint ignore:end */
    ChannelListInstance.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'),
        'UniqueName': _.get(opts, 'uniqueName'),
        'Attributes': _.get(opts, 'attributes'),
        'Type': _.get(opts, 'type'),
        'DateCreated': serialize.iso8601DateTime(_.get(opts, 'dateCreated')),
        'DateUpdated': serialize.iso8601DateTime(_.get(opts, 'dateUpdated')),
        'CreatedBy': _.get(opts, 'createdBy')
      });
  
      var promise = this._version.create({uri: this._uri, method: 'POST', data: data});
  
      promise = promise.then(function(payload) {
        deferred.resolve(new ChannelInstance(
          this._version,
          payload,
          this._solution.serviceSid,
          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 ChannelInstance 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.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {channel.channel_type|list} [opts.type] - The type
     * @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 */
    ChannelListInstance.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 ChannelInstance 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.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {channel.channel_type|list} [opts.type] - The type
     * @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 */
    ChannelListInstance.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 ChannelInstance 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.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {object|function} opts - ...
     * @param {channel.channel_type|list} [opts.type] - The type
     * @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 */
    ChannelListInstance.page = function page(opts, callback) {
      if (_.isFunction(opts)) {
        callback = opts;
        opts = {};
      }
      opts = opts || {};
  
      var deferred = Q.defer();
      var data = values.of({
        'Type': serialize.map(_.get(opts, 'type'), function(e) { return e; }),
        '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 ChannelPage(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 ChannelInstance 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.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {channel.channel_type|list} [opts.type] - The type
     * @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 */
    ChannelListInstance.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 ChannelPage(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 channel
     *
     * @function get
     * @memberof Twilio.Chat.V2.ServiceContext.ChannelList
     * @instance
     *
     * @param {string} sid - The sid
     *
     * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext}
     */
    /* jshint ignore:end */
    ChannelListInstance.get = function get(sid) {
      return new ChannelContext(this._version, this._solution.serviceSid, sid);
    };
  
    return ChannelListInstance;
  };
  
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Chat.V2.ServiceContext.ChannelPage
   * @augments Page
   * @description Initialize the ChannelPage
   *
   * @param {Twilio.Chat.V2} version - Version of the resource
   * @param {object} response - Response from the API
   * @param {object} solution - Path solution
   *
   * @returns ChannelPage
   */
  /* jshint ignore:end */
  ChannelPage = function ChannelPage(version, response, solution) {
    // Path Solution
    this._solution = solution;
  
    Page.prototype.constructor.call(this, version, response, this._solution);
  };
  
  _.extend(ChannelPage.prototype, Page.prototype);
  ChannelPage.prototype.constructor = ChannelPage;
  
  /* jshint ignore:start */
  /**
   * Build an instance of ChannelInstance
   *
   * @function getInstance
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelPage
   * @instance
   *
   * @param {object} payload - Payload response from the API
   *
   * @returns ChannelInstance
   */
  /* jshint ignore:end */
  ChannelPage.prototype.getInstance = function getInstance(payload) {
    return new ChannelInstance(this._version, payload, this._solution.serviceSid);
  };
  
  
  /* jshint ignore:start */
  /**
   * @constructor Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @description Initialize the ChannelContext
   *
   * @property {string} sid -
   *          A 34 character string that uniquely identifies this resource.
   * @property {string} accountSid -
   *          The unique id of the Account responsible for this channel.
   * @property {string} serviceSid -
   *          The unique id of the Service this channel belongs to.
   * @property {string} friendlyName - The human-readable name of this channel.
   * @property {string} uniqueName - The unique, addressable name of this channel.
   * @property {string} attributes -
   *          An optional string metadata field you can use to store any data you wish.
   * @property {channel.channel_type} type -
   *          The visibility of this channel - either public or private
   * @property {Date} dateCreated - The date that this resource was created.
   * @property {Date} dateUpdated - The date that this resource was last updated.
   * @property {string} createdBy - Identity of the channel's creator.
   * @property {number} membersCount - The number of Members in the Channel
   * @property {number} messagesCount - The number of Messages in the Channel
   * @property {string} url - An absolute URL for this channel.
   * @property {string} links -
   *          Absolute URLs to access the Members, Messages , Invites and, if it exists the last Message for this Channel.
   *
   * @param {Twilio.Chat.V2} version - Version of the resource
   * @param {object} payload - The instance payload
   * @param {sid} serviceSid - The service_sid
   * @param {sid_like} sid - The sid
   */
  /* jshint ignore:end */
  ChannelInstance = function ChannelInstance(version, payload, serviceSid, sid) {
    this._version = version;
  
    // Marshaled Properties
    this.sid = payload.sid; // jshint ignore:line
    this.accountSid = payload.account_sid; // jshint ignore:line
    this.serviceSid = payload.service_sid; // jshint ignore:line
    this.friendlyName = payload.friendly_name; // jshint ignore:line
    this.uniqueName = payload.unique_name; // jshint ignore:line
    this.attributes = payload.attributes; // jshint ignore:line
    this.type = payload.type; // 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
    this.membersCount = deserialize.integer(payload.members_count); // jshint ignore:line
    this.messagesCount = deserialize.integer(payload.messages_count); // jshint ignore:line
    this.url = payload.url; // jshint ignore:line
    this.links = payload.links; // jshint ignore:line
  
    // Context
    this._context = undefined;
    this._solution = {serviceSid: serviceSid, sid: sid || this.sid, };
  };
  
  Object.defineProperty(ChannelInstance.prototype,
    '_proxy', {
    get: function() {
      if (!this._context) {
        this._context = new ChannelContext(this._version, this._solution.serviceSid, this._solution.sid);
      }
  
      return this._context;
    }
  });
  
  /* jshint ignore:start */
  /**
   * fetch a ChannelInstance
   *
   * @function fetch
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.fetch = function fetch(callback) {
    return this._proxy.fetch(callback);
  };
  
  /* jshint ignore:start */
  /**
   * remove a ChannelInstance
   *
   * @function remove
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.remove = function remove(callback) {
    return this._proxy.remove(callback);
  };
  
  /* jshint ignore:start */
  /**
   * update a ChannelInstance
   *
   * @function update
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @param {object|function} opts - ...
   * @param {string} [opts.friendlyName] - A human-readable name for the Channel.
   * @param {string} [opts.uniqueName] - A unique, addressable name for the Channel.
   * @param {string} [opts.attributes] -
   *          An optional metadata field you can use to store any data you wish.
   * @param {Date} [opts.dateCreated] -
   *          The optional ISO8601 time specifying the datetime the Channel should be set as being created.
   * @param {Date} [opts.dateUpdated] -
   *          The optional ISO8601 time specifying the datetime the Channel should be set as having been last updated.
   * @param {string} [opts.createdBy] -
   *          Optional field to specify the Identity of the User that created the Channel.
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.update = function update(opts, callback) {
    return this._proxy.update(opts, callback);
  };
  
  /* jshint ignore:start */
  /**
   * Access the members
   *
   * @function members
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext.MemberList}
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.members = function members() {
    return this._proxy.members;
  };
  
  /* jshint ignore:start */
  /**
   * Access the messages
   *
   * @function messages
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext.MessageList}
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.messages = function messages() {
    return this._proxy.messages;
  };
  
  /* jshint ignore:start */
  /**
   * Access the invites
   *
   * @function invites
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext.InviteList}
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.invites = function invites() {
    return this._proxy.invites;
  };
  
  /* jshint ignore:start */
  /**
   * Access the webhooks
   *
   * @function webhooks
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @returns {Twilio.Chat.V2.ServiceContext.ChannelContext.WebhookList}
   */
  /* jshint ignore:end */
  ChannelInstance.prototype.webhooks = function webhooks() {
    return this._proxy.webhooks;
  };
  
  /* jshint ignore:start */
  /**
   * Produce a plain JSON object version of the ChannelInstance for serialization.
   * Removes any circular references in the object.
   *
   * @function toJSON
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelInstance
   * @instance
   *
   * @returns Object
   */
  /* jshint ignore:end */
  ChannelInstance.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.Chat.V2.ServiceContext.ChannelContext
   * @description Initialize the ChannelContext
   *
   * @property {Twilio.Chat.V2.ServiceContext.ChannelContext.MemberList} members -
   *          members resource
   * @property {Twilio.Chat.V2.ServiceContext.ChannelContext.MessageList} messages -
   *          messages resource
   * @property {Twilio.Chat.V2.ServiceContext.ChannelContext.InviteList} invites -
   *          invites resource
   * @property {Twilio.Chat.V2.ServiceContext.ChannelContext.WebhookList} webhooks -
   *          webhooks resource
   *
   * @param {Twilio.Chat.V2} version - Version of the resource
   * @param {sid} serviceSid - The service_sid
   * @param {sid_like} sid - The sid
   */
  /* jshint ignore:end */
  ChannelContext = function ChannelContext(version, serviceSid, sid) {
    this._version = version;
  
    // Path Solution
    this._solution = {serviceSid: serviceSid, sid: sid, };
    this._uri = _.template(
      '/Services/<%= serviceSid %>/Channels/<%= sid %>' // jshint ignore:line
    )(this._solution);
  
    // Dependents
    this._members = undefined;
    this._messages = undefined;
    this._invites = undefined;
    this._webhooks = undefined;
  };
  
  /* jshint ignore:start */
  /**
   * fetch a ChannelInstance
   *
   * @function fetch
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelContext
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelContext.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 ChannelInstance(
        this._version,
        payload,
        this._solution.serviceSid,
        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 */
  /**
   * remove a ChannelInstance
   *
   * @function remove
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelContext
   * @instance
   *
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelContext.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 ChannelInstance
   *
   * @function update
   * @memberof Twilio.Chat.V2.ServiceContext.ChannelContext
   * @instance
   *
   * @param {object|function} opts - ...
   * @param {string} [opts.friendlyName] - A human-readable name for the Channel.
   * @param {string} [opts.uniqueName] - A unique, addressable name for the Channel.
   * @param {string} [opts.attributes] -
   *          An optional metadata field you can use to store any data you wish.
   * @param {Date} [opts.dateCreated] -
   *          The optional ISO8601 time specifying the datetime the Channel should be set as being created.
   * @param {Date} [opts.dateUpdated] -
   *          The optional ISO8601 time specifying the datetime the Channel should be set as having been last updated.
   * @param {string} [opts.createdBy] -
   *          Optional field to specify the Identity of the User that created the Channel.
   * @param {function} [callback] - Callback to handle processed record
   *
   * @returns {Promise} Resolves to processed ChannelInstance
   */
  /* jshint ignore:end */
  ChannelContext.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'),
      'UniqueName': _.get(opts, 'uniqueName'),
      'Attributes': _.get(opts, 'attributes'),
      'DateCreated': serialize.iso8601DateTime(_.get(opts, 'dateCreated')),
      'DateUpdated': serialize.iso8601DateTime(_.get(opts, 'dateUpdated')),
      'CreatedBy': _.get(opts, 'createdBy')
    });
  
    var promise = this._version.update({uri: this._uri, method: 'POST', data: data});
  
    promise = promise.then(function(payload) {
      deferred.resolve(new ChannelInstance(
        this._version,
        payload,
        this._solution.serviceSid,
        this._solution.sid
      ));
    }.bind(this));
  
    promise.catch(function(error) {
      deferred.reject(error);
    });
  
    if (_.isFunction(callback)) {
      deferred.promise.nodeify(callback);
    }
  
    return deferred.promise;
  };
  
  Object.defineProperty(ChannelContext.prototype,
    'members', {
    get: function() {
      if (!this._members) {
        this._members = new MemberList(this._version, this._solution.serviceSid, this._solution.sid);
      }
      return this._members;
    }
  });
  
  Object.defineProperty(ChannelContext.prototype,
    'messages', {
    get: function() {
      if (!this._messages) {
        this._messages = new MessageList(this._version, this._solution.serviceSid, this._solution.sid);
      }
      return this._messages;
    }
  });
  
  Object.defineProperty(ChannelContext.prototype,
    'invites', {
    get: function() {
      if (!this._invites) {
        this._invites = new InviteList(this._version, this._solution.serviceSid, this._solution.sid);
      }
      return this._invites;
    }
  });
  
  Object.defineProperty(ChannelContext.prototype,
    'webhooks', {
    get: function() {
      if (!this._webhooks) {
        this._webhooks = new WebhookList(this._version, this._solution.serviceSid, this._solution.sid);
      }
      return this._webhooks;
    }
  });
  
  module.exports = {
    ChannelList: ChannelList,
    ChannelPage: ChannelPage,
    ChannelInstance: ChannelInstance,
    ChannelContext: ChannelContext
  };
  