@Override
  public String toString() {
    return "KeyPress{" + "type=" + type + ", character=" + escape(character) + ", alt=" + alt
      + ", ctrl=" + ctrl + ", shift=" + shift + '}';
  }
Represents the user pressing a key on the keyboard.
hbase-hbtop/src/main/java/org/apache/hadoop/hbase/hbtop/terminal/KeyPress.java