553 	end

   553 	end

   554 	if not self.config.itemcheck(item) then

   554 	if not self.config.itemcheck(item) then

   555 		return nil, "invalid-item";

   555 		return nil, "invalid-item";

   556 	end

   556 	end

   557 	local node_data = self.data[node];

   557 	local node_data = self.data[node];

   558 	local ok = node_data:set(id, item);

   562 	local ok = node_data:set(id, item);

   559 	if not ok then

   563 	if not ok then

   560 		return nil, "internal-server-error";

   564 		return nil, "internal-server-error";

   561 	end

   565 	end

   562 	if type(ok) == "string" then id = ok; end

   566 	if type(ok) == "string" then id = ok; end