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diff --git a/includes/title/ImportTitleFactory.php b/includes/title/ImportTitleFactory.php
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+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @license GPL 2+
+ */
+
+/**
+ * Represents an object that can convert page titles on a foreign wiki
+ * (ForeignTitle objects) into page titles on the local wiki (Title objects).
+ */
+interface ImportTitleFactory {
+	/**
+	 * Determines which local title best corresponds to the given foreign title.
+	 * If such a title can't be found or would be locally invalid, null is
+	 * returned.
+	 *
+	 * @param ForeignTitle $foreignTitle The ForeignTitle to convert
+	 * @return Title|null
+	 */
+	public function createTitleFromForeignTitle( ForeignTitle $foreignTitle );
+}