public function wp_restoreRevision( $args ) {
		if ( ! $this->minimum_args( $args, 3 ) ) {
			return $this->error;
		}

		$this->escape( $args );

		$username    = $args[1];
		$password    = $args[2];
		$revision_id = (int) $args[3];

		$user = $this->login( $username, $password );
		if ( ! $user ) {
			return $this->error;
		}

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'wp.restoreRevision' );

		$revision = wp_get_post_revision( $revision_id );
		if ( ! $revision ) {
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );
		}

		if ( wp_is_post_autosave( $revision ) ) {
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );
		}

		$post = get_post( $revision->post_parent );
		if ( ! $post ) {
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );
		}

		if ( ! current_user_can( 'edit_post', $revision->post_parent ) ) {
			return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
		}

		// Check if revisions are disabled.
		if ( ! wp_revisions_enabled( $post ) ) {
			return new IXR_Error( 401, __( 'Sorry, revisions are disabled.' ) );
		}

		$post = wp_restore_post_revision( $revision_id );

		return (bool) $post;
	}