in reactor/Core/src/jetbrains/mps/logic/reactor/program/Rule.java [81:88]
public boolean equals(Object that) {
if (that == null) return false;
if (this == that) return true;
if (!(that instanceof Tag)) return false;
return Objects.equals(this.id, ((Tag) that).id) &&
Objects.equals(this.tag, ((Tag) that).tag) &&
Objects.equals(this.group, ((Tag) that).group);
}