val duration_to_yojson : duration -> Yojson.Safe.tval duration_of_yojson :
Yojson.Safe.t ->
duration Ppx_deriving_yojson_runtime.error_orval pp_duration : Stdlib.Format.formatter -> duration -> unitval show_duration : duration -> stringval duration_to_span : duration -> Ptime.spanval ptime_to_yojson : Ptime.t -> [> `String of string ]val ptime_of_yojson : Yojson.Safe.t -> (Ptime.t, string) Stdlib.resultval ptime_of_date_string : string -> (Ptime.t, string) Stdlib.resultval ptime_to_date_string : Ptime.t -> stringmodule Span : sig ... end