code: function _flw_clean() {
        const self = this;
        const contextCopy = {};
        Object.keys(this).forEach(function (k) {
          if (ourContextKeys.indexOf(k) !== -1) return;
          contextCopy[k] = self[k];
        });
        return contextCopy;
      }
docs: Cleans all flw related properties from the context object