Function switch_event_reserve_subclass_detailed

pub unsafe extern "C" fn switch_event_reserve_subclass_detailed(
    owner: *const c_char,
    subclass_name: *const c_char,
) -> switch_status_t

\brief Reserve a subclass name for private use with a custom event \param owner the owner of the event name \param subclass_name the name to reserve \return SWITCH_STATUS_SUCCESS if the name was reserved \note There is nothing to enforce this but I recommend using module::event_name for the subclass names