module:set_global(); local function sink_maker(config) local levels = { debug = module:measure("log.debug", "rate"); info = module:measure("log.info", "rate"); warn = module:measure("log.warn", "rate"); error = module:measure("log.error", "rate"); }; return function (_, level) return levels[level](); end end require"core.loggingmanager".register_sink_type("measure", sink_maker);