code: function () {
          if (!this._details || this._details.code !== this.code) {
              this._details = _.clone(httpReasons.lookup(this.code));
              this._details.code = this.code;
              this._details.standardName = this._details.name;
          }
          return _.clone(this._details);
      }
docs: Creates a JSON representation of the current response details, and returns it.
  
  @returns {Object} A set of response details, including the custom server reason.
  @private