*/
public function createStubMigration(array $definition);
+ /**
+ * Create migrations given a tag.
+ *
+ * @param string $tag
+ * A migration tag we want to filter by.
+ *
+ * @return array|\Drupal\migrate\Plugin\MigrationInterface[]
+ * An array of migration objects with the given tag.
+ */
+ public function createInstancesByTag($tag);
+
}