val of_micros : int64 -> tval of_decimal_string : string -> (t, string) Stdlib.resultval to_micros : t -> int64val to_decimal_string : t -> stringval compare : t -> t -> intval equal : t -> t -> boolval add : t -> t -> (t, string) Stdlib.resultval subtract : t -> t -> (t, string) Stdlib.resultval negate : t -> (t, string) Stdlib.resultval absolute : t -> (t, string) Stdlib.resultval for_quantity : t -> Quantity.t -> (t, string) Stdlib.resultval convert : t -> rate:Price.t -> (t, string) Stdlib.resultval multiply_ratio : t -> Ratio.t -> (t, string) Stdlib.resultval weight_toward_zero : t -> equity:t -> (Weight.t, string) Stdlib.resultval fee : fixed:t -> bps:int -> notional:t -> (t, string) Stdlib.resultval bps_ceil : t -> bps:int -> (t, string) Stdlib.resultval pp : Stdlib.Format.formatter -> t -> unit