@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    MessageEventImpl event = (MessageEventImpl)o;
    return Objects.equals(getMessage(), event.getMessage()) &&
           Objects.equals(getDescription(), event.getDescription()) &&
           Objects.equals(myGroup, event.myGroup);
  }
@Override
  public boolean equals(Object o)