268 	end

   268 	end

   269 	

   269 	

   270 	return set.new(value);

   270 	return set.new(value);

   271 end

   271 end

   272 

   272 

   273 function api:add_item(key, value)

   277 function api:add_item(key, value)

   274 	self.items = self.items or {};

   278 	self.items = self.items or {};

   275 	self.items[key] = self.items[key] or {};

   279 	self.items[key] = self.items[key] or {};

   276 	t_insert(self.items[key], value);

   280 	t_insert(self.items[key], value);

   277 	self:fire_event("item-added/"..key, {source = self, item = value});

   281 	self:fire_event("item-added/"..key, {source = self, item = value});