Module Tezos_protocol_environment_023_PtSeouLo.Logging

type level =
  1. | Debug
  2. | Info
  3. | Notice
  4. | Warning
  5. | Error
  6. | Fatal
val log : level -> ('a, Format.formatter, unit, unit) Pervasives.format4 -> 'a
val log_string : level -> string -> unit