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import { factorizeType } from "./SumType.js";
export const IO = factorizeType("IO", [ "asyncFunction" ]);
IO.empty = _ => IO(_ => null);
IO.of = IO.prototype.of = IO.prototype["fantasy-land/of"] = value => IO(_ => value);
IO.prototype.ap = IO.prototype["fantasy-land/ap"] = function (container) {
  //   return IO.is(container) ? IO(_ => container.asyncFunction(this.asyncFunction())) : container  return container.map(unaryFunction => unaryFunction(this.asyncFunction()));};
IO.prototype.chain = IO.prototype["fantasy-land/chain"] = function (unaryFunction) {
  return IO(_ => unaryFunction(this.asyncFunction())).run();};
IO.prototype.map = IO.prototype["fantasy-land/map"] = function (unaryFunction) {
  return IO(_ => unaryFunction(this.asyncFunction()));};
IO.prototype.run = function () {
  return this.asyncFunction();};
export default IO;