úÎ %ê$Z     None#ž Obtain a  that will write logs in the df1 format to .!Generally, you will want to call - just once per application, right from your main function. For example: main ::  () main = do  $ \di -> do  di $ do -- #The rest of your program goes here. -- !You can start logging right away.  ' "Welcome to my program!" --  You can use  to separate different -- logging scopes of your program: ( "initialization" $ do -- %something something do initialization  ! "Starting web server"  "server" $ do -- And you can use  to add metadata to -- *messages logged within a particular scope. % "port" "80" $ do  A "Listening for new clients" clientAddress <- somehow get a client connection & "handler" $ do > "client-address" clientAddress $ do   "Connection established" 0That program will render something like this to  (in colors!): ÿU2018-05-06T19:48:06.194579393Z NOTICE Welcome to my program! 2018-05-06T19:48:06.195041422Z /initialization NOTICE Starting web server 2018-05-06T19:48:06.195052862Z /server port=80 INFO Listening for new clients 2018-05-06T19:48:06.195059084Z /server port=80 /handler client%2daddress=192%2e168%2e0%2e25%3a32528 INFO Connection established (Unrelated: Notice how df1I escapes pretty much all punctuation characters. This is temporal until df1N is formalized and a more limited set of punctuation characters is reserved.),Within this scope, you can use the obtained ( safely, even concurrently. As soon as m a finishes, G will block until all logs have finished processing, before returning.WARNING: Even while  commit  :: m (   )3 type-checks, and you can use it to work with the @ outside the intended scope, you will have to remember to call x yourself before exiting your application. Otherwise, some log messages may be left unprocessed. If possible, use the : within this function and don't let it escape this scope.       !"#$%&'()*+di-1.0-7A2lQOn839b8OwsFDBGgrADi System.IOstderr df1-0.1.1-4p3RO6evVFnJe4UWSlq5ea Df1.TypesvaluekeysegmentMessageSegmentKeyValue"di-core-1.0-C3rLBFIoAOiHixVY6wuBnBDi.Core%di-monad-1.0.2-D1HAZ3lPuhl6OjynbbSpCtDi.MonadMonadDi!di-df1-1.0-4nyPJkba2MeDA9ct4efDsb Di.Df1.Monaddebuginfonoticewarningerrorcriticalalert emergencyattrpushhoistDiTrunDiTDiTnewghc-prim GHC.TypesIObaseGHC.BasepureLevelPathflush