System.Spanmultiply_exn factor t is a time spans that lasts factor time as long as t. It fails if the time span cannot be represented.
val of_seconds_exn : float -> tof_seconds_exn f is a time span of f seconds. It fails if the time span cannot be represented.
val rpc_arg : t Mavryk_rpc.Arg.tval pp_hum : Stdlib.Format.formatter -> t -> unitval encoding : t Data_encoding.t