--- /dev/null
+<?php
+
+namespace Drupal\Component\Plugin;
+
+/**
+ * Plugin interface for providing some metadata inspection.
+ *
+ * This interface provides some simple tools for code receiving a plugin to
+ * interact with the plugin system.
+ *
+ * @ingroup plugin_api
+ */
+interface PluginInspectionInterface {
+
+ /**
+ * Gets the plugin_id of the plugin instance.
+ *
+ * @return string
+ * The plugin_id of the plugin instance.
+ */
+ public function getPluginId();
+
+ /**
+ * Gets the definition of the plugin implementation.
+ *
+ * @return array
+ * The plugin definition, as returned by the discovery object used by the
+ * plugin manager.
+ */
+ public function getPluginDefinition();
+
+}