Module System.Log

val error_f : ('a, unit, string, unit io) format4 -> 'a
val warning_f : ('a, unit, string, unit io) format4 -> 'a
val info_f : ('a, unit, string, unit io) format4 -> 'a
val debug_f : ('a, unit, string, unit io) format4 -> 'a
val debug_query_enabled : unit -> bool
val debug_query : Caqti1_query.query_info -> string list -> unit io
val debug_tuple_enabled : unit -> bool
val debug_tuple : string list -> unit io