Method include

pkmc-server/src/entity_manager.rs:75–84

(&mut self, uuid: UUID)

impl EntityVisibility {
    pub fn include(&mut self, uuid: UUID) {
        match self {
            EntityVisibility::Include(uuids) => {
                uuids.insert(uuid);
            }
            EntityVisibility::Exclude(uuids) => {
                uuids.remove(&uuid);
            }
        }
    }

    pub fn exclude(&mut self, uuid: UUID) {
        match self {