+ /** Get the value in seconds of a duration that is in the user-friendly "1h2m3s" format,
+ * using a default value if it does not exist or is out of bounds.
+ * @param key The config key name
+ * @param def Default value (optional)
+ * @param min Minimum acceptable value (optional)
+ * @param max Maximum acceptable value (optional)
+ * @return The duration in seconds
+ */
+ long getDuration(const std::string& key, long def = 0, long min = LONG_MIN, long max = LONG_MAX);
+
+ /** Get the value of an option
+ * @param key The option to get
+ * @param value The location to store the value (unmodified if does not exist)
+ * @param allow_newline Allow newlines in the option (normally replaced with spaces)
+ * @return true if the option exists
+ */