@Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (!(o instanceof MusicRelease)) {
      return false;
    }
    MusicRelease that = (MusicRelease) o;
    return Objects.equals(icpnCode, that.icpnCode) && Objects.equals(title, that.title)
        && Objects.equals(byArtists, that.byArtists);
  }
POJO for https://schema.org/MusicRelease
portability-types-common/src/main/java/org/datatransferproject/types/common/models/music/MusicRelease.java