protected override IServiceProvider Configure(IEventFlowOptions eventFlowOptions)
{
var storePath = Path.Combine(
Path.GetTempPath(),
Guid.NewGuid().ToString());
Directory.CreateDirectory(storePath);
var serviceProvider = eventFlowOptions
.UseFilesEventPersistence(FilesEventStoreConfiguration.Create(storePath))
.ServiceCollection.BuildServiceProvider();
_configuration = serviceProvider.GetRequiredService <IFilesEventStoreConfiguration>();
return(serviceProvider);
}