in integration_test/lib/src/json_handlers.dart [28:36]
FutureOr<bool> jsonHandler(
Map<String, dynamic> request,
RequestContext context,
) {
print('Keys: ${request.keys.join(', ')}');
context.responseHeaders['key_count'] = request.keys.length.toString();
context.responseHeaders['multi'] = ['item1', 'item2'];
return request.isEmpty;
}