rebase from live enviornment

wp/plugins/woocommerce/lib/packages/League/Container/ServiceProvider/AbstractServiceProvider.php

@@ -0,0 +1,46 @@
+<?php declare(strict_types=1);
+
+namespace Automattic\WooCommerce\Vendor\League\Container\ServiceProvider;
+
+use Automattic\WooCommerce\Vendor\League\Container\ContainerAwareTrait;
+
+abstract class AbstractServiceProvider implements ServiceProviderInterface
+{
+    use ContainerAwareTrait;
+
+    /**
+     * @var array
+     */
+    protected $provides = [];
+
+    /**
+     * @var string
+     */
+    protected $identifier;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function provides(string $alias) : bool
+    {
+        return in_array($alias, $this->provides, true);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setIdentifier(string $id) : ServiceProviderInterface
+    {
+        $this->identifier = $id;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getIdentifier() : string
+    {
+        return $this->identifier ?? get_class($this);
+    }
+}