Method clone

external/.scrollLibs.js:16789–16791

(subparticles = this.subparticlesToString(), line = this.getLine())

    return this.map(particle => particle._toXml(indentCount)).join("")
  }
  clone(subparticles = this.subparticlesToString(), line = this.getLine()) {
    return new this.constructor(subparticles, line)
  }
  hasCue(cue) {
    return this._hasCue(cue)
  }