746 	end

   746 	end

   747 	local sum = 0;

   747 	local sum = 0;

   748 	for _, metric in mf:iter_metrics() do

   748 	for _, metric in mf:iter_metrics() do

   749 		sum = sum + metric.value;

   749 		sum = sum + metric.value;

   750 	end

   750 	end

   752 end

   752 end

   753 

   753 

   754 local function get_server_metrics(event)

   754 local function get_server_metrics(event)

   755 	event.response.headers["Content-Type"] = json_content_type;

   755 	event.response.headers["Content-Type"] = json_content_type;

   756 	local result = {};

   756 	local result = {};