@interface WFWorkflowMigrator : NSObject + (void)initialize; + (void)migrateWorkflowIfNeeded:(id)a0 completion:(id /* block */)a1; + (id)migrationClasses; + (id)migrationClassesWithDependencies; + (id)orderedMigrationClassesWithoutDependencies; + (void)registerAllWorkflowKitMigrationClasses; + (void)registerMigrationClass:(Class)a0; @end