client cluster First = 1 {
    attribute int16u someInteger = 1;
}

client cluster Second = 2 {
    readonly attribute octet_string<32> someBytes = 123;
}

client cluster Third = 3 {
    enum MyEnum : enum8 {
      kUnknown = 0;
      kKnown = 100;
    }

    attribute MyEnum someEnum = 10;
}