Message_templates.Console_sinkConsole sink - outputs log events to stdout/stderr
The console sink provides formatted log output to the terminal with optional color support. Events at Error level and above go to stderr, others go to stdout.
Color codes by level:
Create a console sink.
val emit : t -> Log_event.t -> unitEmit a log event to the console
val flush : t -> unitFlush the output buffer
val close : t -> unitClose the console sink (no-op for console)