public function response_feed_complete() {
		/**
		 * A successful PUT request to /wp-json/invp/v1/feed-complete has
		 * occurred. Assume a client has just updated the entire list of
		 * inventory posts and attachments.
		 */
		do_action( 'invp_feed_complete' );

		// Tell the user what just happened.
		return array(
			'action'        => 'invp_feed_complete',
			'documentation' => 'https://inventorypresser.com/docs/reference/hooks/invp_feed_complete/',
		);
	}