code: function process(payload) {
    payload = payload.toLowerCase();
  
    var ra28 = new identifier(identifier.RA28, payload.substr(0, 7));
    var eui64 = ra28.toType(identifier.EUI64);
    eui64.flags = flags.process(payload.substr(7, 1));
    if (payload.length === 12) {
      eui64.data = data.process(payload.substr(8, 4));
    }
    return eui64;
  }
docs: Process a raw reelyActive radio payload into semantically meaningful
  information.
  @param {string} payload The raw payload as a hexadecimal-string.
  @return {EUI64} EUI-64 identifier.