Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/breakpoint/src/BreakpointInterface.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\breakpoint\BreakpointInterface.
+ */
+
+namespace Drupal\breakpoint;
+
+/**
+ * Interface for Breakpoint plugins.
+ */
+interface BreakpointInterface {
+
+  /**
+   * Returns the translated label.
+   *
+   * @return string
+   *   The translated label.
+   */
+  public function getLabel();
+
+  /**
+   * Returns the weight.
+   *
+   * @return int
+   *   The weight.
+   */
+  public function getWeight();
+
+  /**
+   * Returns the media query.
+   *
+   * @return string
+   *   The media query.
+   */
+  public function getMediaQuery();
+
+  /**
+   * Returns the multipliers.
+   *
+   * @return array
+   *   The multipliers.
+   */
+  public function getMultipliers();
+
+  /**
+   * Returns the provider.
+   *
+   * @return string
+   *   The provider.
+   */
+  public function getProvider();
+
+  /**
+   * Returns the breakpoint group.
+   *
+   * @return string
+   *   The breakpoint group.
+   */
+  public function getGroup();
+
+}