nostr:nprofile1qyfhwumn8ghj7ur4wfcxcetsv9njuetn9uq3jamnwvaz7tmjv4kxz7fwwdhx7un59eek7cmfv9kz7qghwaehxw309aex2mrp0yhxummnw3ezucnpdejz7qg3waehxw309ahx7um5wgh8w6twv5hsz9thwden5te0wfjkccte9ejxzmt4wvhxjme0qyw8wumn8ghj7un9d3shjtnzd96xxmmfdecxzunt9e3k7mf0qqsx3kq3vkgczq9hmfplc28h687py42yvms3zkyxh8nmkvn0vhkyyusg2aq6x  what is the difference between a `RelayPoolNotification::Event` and a `RelayPoolNotification::Message`? based on the docs, i assumed it was just whether i wanted to be notified about my own messages. however, i'm noticing that there are some valid events that i should be notified about that the relay is sending but then does not have the Event type and has the Message type instead.