readFeatures(source, options) {
    return this.readFeaturesFromText(
      getText(source),
      this.adaptOptions(options),
    );
  }
Read the features from the source.

@param {Document|Element|Object|string} source Source.
@param {import("./Feature.js").ReadOptions} [options] Read options.
@return {Array<import("../Feature.js").default>} Features.
@api
@override