Logs.LOGThe type for source specific logging functions.
val app : 'a logapp is msg App.
val err : 'a logerr is msg Error.
val warn : 'a logwarn is msg Warning.
val info : 'a loginfo is msg Info.
val debug : 'a logdebug is msg Debug.
result value Errorsval on_error : ?level:level -> ?header:string -> ?tags:Tag.set -> pp:(Format.formatter -> 'b -> unit) -> use:('b -> 'a)
-> ('a, 'b) result -> 'aSee Logs.on_error.
val on_error_msg : ?level:level -> ?header:string -> ?tags:Tag.set -> use:(unit -> 'a) ->
('a, [ `Msg of string ]) result -> 'aSee Logs.on_error_msg.