fun <T : CommandData> findCommand(clazz: Class<T>, predicate: Predicate<T>): Command<T>
Helper to simplify finding a single Command items according to a Predicate.
clazz - The class type used for filtering via an Class.isInstance check.
clazz must be an extension of CommandData.
predicate - A filtering function taking a CommandData item of type T and returning true if it should be included in the list.
The class filtering is applied before the predicate.
IllegalArgumentException - if no items, or multiple items matched the requirements.
Return
the Command item with CommandData values matching the predicate and clazz restrictions.
inline fun <reified T : CommandData> findCommand(crossinline predicate: (T) -> Boolean): Command<T>