Pending_coinbase.Updatemodule Action : sig ... endmodule Poly : sig ... endmodule Stable : sig ... endtype t = Stable.Latest.tval to_yojson : t -> Yojson.Safe.ttype var = ( Action.var, Currency.Amount.var ) Poly.tval genesis : tval typ : ( var, t ) Snark_params.Tick.Typ.t