val output :
?debug:Textutils.Console.Ansi.attr list ->
?info:Textutils.Console.Ansi.attr list ->
?error:Textutils.Console.Ansi.attr list ->
Async.Writer.t ->
Async.Log.Output.treturns a Log.Output.t given optional styles (i.e. values of type Ansi.t list) for each of the `Debug, `Info, and `Error log levels. The default styling is to display debug messages in yellow, error messages in red, and info messages without any additional styling.
create doesn't take a format argument because colorized output should be read by humans.
module Blocking : sig ... end