create static method
Create a job instance from its type name and JSON data
Throws QueueException if the job type is not registered.
Implementation
static QueueJob create(String jobType, Map<String, dynamic> json) {
final factory = _instance._factories[jobType];
if (factory == null) {
throw QueueException(
'Job type "$jobType" is not registered. '
'Register it with QueueJobRegistry.register() before dispatching.',
);
}
return factory(json);
}