protected function findMetas(): array {
$classes = array_merge(
// This scope of search is decidedly narrow - it should probably be expanded.
+ $this->scanExampleClasses(\Civi::paths()->getPath('[civicrm.root]/'), 'Civi/Test/ExampleData', '\\'),
$this->scanExampleClasses(\Civi::paths()->getPath('[civicrm.root]/'), 'CRM/*/WorkflowMessage', '_'),
$this->scanExampleClasses(\Civi::paths()->getPath('[civicrm.root]/'), 'Civi/*/WorkflowMessage', '\\'),
$this->scanExampleClasses(\Civi::paths()->getPath('[civicrm.root]/'), 'Civi/WorkflowMessage', '\\'),