constructor(verbatimSegmentUri, tags, partialSegments=[]) {
    /** @const {!Array<shaka.hls.Tag>} */
    this.tags = tags;

    /** @const {?string} */
    this.verbatimSegmentUri = verbatimSegmentUri;

    /** @type {!Array<shaka.hls.Tag>} */
    this.partialSegments = partialSegments;
  }
Creates an HLS segment object.

@param {string} verbatimSegmentUri verbatim segment URI.
@param {!Array<shaka.hls.Tag>} tags
@param {!Array<shaka.hls.Tag>=} partialSegments