adaptOptions(options) {
    return Object.assign(
      {
        dataProjection: this.dataProjection,
        featureProjection: this.defaultFeatureProjection,
        featureClass: this.featureClass,
      },
      options,
    );
  }
Sets the `dataProjection` on the options, if no `dataProjection`
is set.
@param {WriteOptions|ReadOptions|undefined} options
    Options.
@protected
@return {WriteOptions|ReadOptions|undefined}
    Updated options.